problem getting 350 started

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SirRobyn0

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Well hot damn, just under 10 psi. Edelbrock recommends no more than 6.5 psi and they highly recommend 5.5 psi. Well, that was a first for me...crossing fingers.

Sounds like a regulator will really help you out then! Just an FYI, I'm running my regulator set for 3.5PSI and that seems to be enough.
 

Ricko1966

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Wow just thought of this pressure is a by product of volume.No volume, no pressure.Too much volume, too much pressure.So many of you are having this problem, That I would try this, just for fun it's cheap stack 2 fuel pump plates. and or gaskets to shim the pump and reduce pump arm stroke see how much shim you need for a. desired pressure reading .Then you can make a shim,or shorten the pump push rod for whatever pressure you want.Shimming the pump would be easily reversed in the future if you change pumps. Sounds like pump manufacturers need some quality control.

Just occurred to me are you guys running 3 line pumps or 2 line pumps 3 line pumps will return fuel to the tank when the needle closes.Easy way to do a no brainer pressure regulator is used a wix 33060 fuel filter if you don't have a 3 line pump
 
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Rusty Nail

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Repeating Edelbrock 1406 theme amongst the threads in this MSB.

Everybody ignores it and they buy them anyway then ask for help
Yeah I can help.

Guys with Holleys don't have these troubles..just sayin. YES - a 1406 WILL drop liquid fuel into the intake.
Carter carbs are great, lemme tell ya.:rolleyes: All they have to do is manage fuel delivery but they aren't good at it, mmkay?

You know you can make #1 whichever terminal on the distributor you want, right?
o_O

Look, I just showed up to poke a stick around , don't pay me any attention.
:argue:
PLUS there aren't any pix.
 

SirRobyn0

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Repeating Edelbrock 1406 theme amongst the threads in this MSB.

Everybody ignores it and they buy them anyway then ask for help
Yeah I can help.

Guys with Holleys don't have these troubles..just sayin. YES - a 1406 WILL drop liquid fuel into the intake.
Carter carbs are great, lemme tell ya.:rolleyes: All they have to do is manage fuel delivery but they aren't good at it, mmkay?

You know you can make #1 whichever terminal on the distributor you want, right?
o_O

Look, I just showed up to poke a stick around , don't pay me any attention.
:argue:
PLUS there aren't any pix.

I not a Holley fan personally, What I like best on these engines is the stock Q-jet, but that's just me. My Edelbrock was installed by the former owner and with enough tweaking is ok for me.
 

curse

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I would also recommend you get a TDC tool and verify that your timing mark on the cover is actually at the correct location and the damper hasn't started to fail. The outer ring on your damper could be slipping and the mark could be way off.


Once you have the correct TDC mark on your damper, make a mark on the base of your distributor where your #1 plug wire is located with the cap on. Then remove the cap and make sure the rotor is pointed directly at that mark when the mark on your damper is at the 0 deg timing mark.
I got the tool in the mail today. Here's where everything is set. The 2 marks on the timing pointer are where the piston stopped using the tdc tool so that is good. I'm now at tdc on compression stroke and distributor is correct.
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Now i'm waiting for the fuel pressure regulator to show up. I also replaced the gaskets under carb just in case.
 

Ricko1966

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Repeating Edelbrock 1406 theme amongst the threads in this MSB.

Everybody ignores it and they buy them anyway then ask for help
Yeah I can help.

Guys with Holleys don't have these troubles..just sayin. YES - a 1406 WILL drop liquid fuel into the intake.
Carter carbs are great, lemme tell ya.:rolleyes: All they have to do is manage fuel delivery but they aren't good at it, mmkay?

You know you can make #1 whichever terminal on the distributor you want, right?
o_O

Look, I just showed up to poke a stick around , don't pay me any attention.
:argue:
PLUS there aren't any pix.
yep everything you said.But snoots post says it best.
 
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curse

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Repeating Edelbrock 1406 theme amongst the threads in this MSB.

Everybody ignores it and they buy them anyway then ask for help
Yeah I can help.

Guys with Holleys don't have these troubles..just sayin. YES - a 1406 WILL drop liquid fuel into the intake.

For what it's worth I have not read all the other repeating threads and I've never had issues with Edelbrock, then again that was 25 years ago. I do have a Holley but it needs rebuilt.

I got the regulator today and will try it out tomorrow. If fuel pressure is an issue I might get an Edelbrock fuel pump calibrated at 6 psi. I didn't realize they made such a thing until after I ordered a regulator.
 

SirRobyn0

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Repeating Edelbrock 1406 theme amongst the threads in this MSB.

Everybody ignores it and they buy them anyway then ask for help
Yeah I can help.

Guys with Holleys don't have these troubles..just sayin. YES - a 1406 WILL drop liquid fuel into the intake.
Carter carbs are great, lemme tell ya.:rolleyes: All they have to do is manage fuel delivery but they aren't good at it, mmkay?

You know you can make #1 whichever terminal on the distributor you want, right?
o_O

Look, I just showed up to poke a stick around , don't pay me any attention.
:argue:
PLUS there aren't any pix.

For what it's worth I have not read all the other repeating threads and I've never had issues with Edelbrock, then again that was 25 years ago. I do have a Holley but it needs rebuilt.

I got the regulator today and will try it out tomorrow. If fuel pressure is an issue I might get an Edelbrock fuel pump calibrated at 6 psi. I didn't realize they made such a thing until after I ordered a regulator.

for what it's worth, i think all three carburetors have their place and in most cases will work on the same engine if set up correctly. Honestly I'm a huge q-jet fan, i think that the biggest reason some folks don't like them is their complex nature, and difficulty in rebuilding properly. i think edelbrock is the most user friendly in terms of adjustments and rebuilding, their biggest down fall is setting up and getting operating properly when first installed and sensitivity to fuel pressure. The biggest pro to edelbrock is they can be set up for mileage, but then again the stock q-jet can do pretty good if the driver keeps their foot out of it. I myself and not a holley fan, but that doesn't make it wrong that some folks are, we all have different likes and dislikes. mainly i prefer the metering rod setup found in edelbrocks and q-jet vs the holley power valve, but that is just me. As i've said before i'd rather have a q-jet on my truck, but it came with an edelbrock and i'm fine with that as i have it to the point where it runs pretty damn good and i'm pretty damn picky about run ability. sorry about the lack of caps, this computer is having issues with the shift key.

I'm pro using a regulator vs the edelbrock pump mainly because you can adjust the regulator, and some of us myself included have found that even 6psi can be to high at times. remember volume is the important thing on a carbed vehicle. i have mine set at 3.5 psi and the carb likes that. also if you were to be some where and the fuel pump were to fail you'd be stuck with whatever pump is at the closest parts house, where as if the regulator has a problem on the road just about any parts house will have one even if it's not the preferred unit, it'll get you home. that's my prospective on regulators vs edelbrock pump. plus the edelbrock pump is pretty darn pricey, but so is a good regulator.
 

Ricko1966

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For what it's worth I have not read all the other repeating threads and I've never had issues with Edelbrock, then again that was 25 years ago. I do have a Holley but it needs rebuilt.

I got the regulator today and will try it out tomorrow. If fuel pressure is an issue I might get an Edelbrock fuel pump calibrated at 6 psi. I didn't realize they made such a thing until after I ordered a regulator.


The opinion of many, I would say most but that's liable to start a war. The correct fix is a pump putting out the correct pressure.The regulator is 1 more part to fail,1 more part in the equation when things don't work and 3 more places to create a fuel leak.The regulator itself (1)and the connection at each end (2 and 3) Edelbrocks own literature recommends their pump 1st . their regulator last.

And just to head this off, before objections start, if you break down on the road and can't get. A 6 psi pump. Then you can put on whatever pump,and the regulator that every parts store has to get you home so you can fix it right.
 

SirRobyn0

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The opinion of many, I would say most but that's liable to start a war. The correct fix is a pump putting out the correct pressure.The regulator is 1 more part to fail,1 more part in the equation when things don't work and 3 more places to create a fuel leak.The regulator itself (1)and the connection at each end (2 and 3) Edelbrocks own literature recommends their pump 1st . their regulator last.

And just to head this off, before objections start, if you break down on the road and can't get. A 6 psi pump. Then you can put on whatever pump,and the regulator that every parts store has to get you home so you can fix it right.

No war will be started at least not by me as we have had it out previously regarding this. No need to go there again, and the bottom line is that you and I see things differently and thats ok, maybe even good. So folks know there is more than one way to solve a fuel pressure problem. We both just think our way is the right way and feel strongly about it. :)
 

Bextreme04

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I just realized that I had never checked what the fuel pump specs say for the replacement pump on my truck. I ordered it from Rockauto and paid for the more expensive ACDelco unit. Turns out the specs for every pump listed for my 1980 K25 5.7L says that pump pressure is rated for 40GPH @ 7.5-9PSI.... Every quadrajet source I have found says that pump pressure should be no more than 7 psi and ideally should be 6 PSI. The only pump on rockauto that listed a minimum pressure lower than 7.5 was a Carter unit that listed 2.0PSI minimum and no maximum.

I was curious, so I went to autozone and NAPA websites. Autozone lists the exact same pumps, but with no pressure ratings. NAPA only has their own brand pump, but also listed as 9 PSI maximum pressure.
 

Ricko1966

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Airtex. 40725 looks like an affordable alternative to an edelbrock pump jegs and speedway also listed some low pressure pumps
 

Ricko1966

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Airtex. 40725 looks like an affordable alternative to an edelbrock pump jegs and speedway also listed some low pressure pumps Didn't mean for this to post twice anyways that Carter pump I saw that too I tbink it was an m4651? 2psi minimum I'd think it's a safe bet. Most of the pumps I saw were only showing about a 2.5 Lb spread like 7.5-9 psi so I'm thinking that Carter has gotta be under 6 I'd gamble with it
 
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