Bit of a tune up question

[silverscottsk10]

I don't have luck with selling anything lol

 

[Driver4r]

All the parts have to work together for it to be happy.

 

[silverscottsk10]

That's anything mechanical
But between work and school I just can't buy stuff
So what I have will have to do

 

[highdesertrange]

holleys are good street rod, 1/4 mile, boat carbs. for a 4x4 not so much. highdesertranger

 

[silverscottsk10]

It's street for the next year and a half
Can't afford to break stuff in the mud
The stop and go kills my mpg
Low end is all it needs
Never gets about 45mph or 3200 rpm

 

[silverscottsk10]

You must be registered for see images

havent ever seen a rusted valve under a cover of a daily driver lol

 

[Thunder]

With the statement " Never gets over 45 mph or 3200 rpm" the torker manifold will kill anything you're wanting to do with that engine. While I understand that that is what you have to work with you will not be happy. Performance and mileage will suffer. Even if you went to your local pick and scrounge and put on a stock manifold, you and your engine would be happier. If I had the money to pay shipping I would swap you one of my dual planes for the Torker. If you know someone in Colorado maybe we could work something out. Or hold on to the Torker until you can build an engine that will work well under that manifold.

 

[silverscottsk10]

I think I may use this for the week
Then swap back to my other
Along with the Holley 750 carb
The intake that was on it has bigger ports than the heads, wouldn't that cause a bit of turbulence in the intake?
Also I have a 1/2" and 3/4" inch riser
Would that do anything for the atomization or is it just a useless product?

 

[Thunder]

Ya ever kick a dead horse?

 

[Driver4r]

Would that do anything for the atomization or is it just a useless product?

Its not so much the atomization, its just with a dual plane the sides are separate, and that helps more with low end torque having that varience in port flow.

Its not a useless product, its just not happy with the setup your trying to put it on. Now if you were constantly turning 3k+, then it would make a performance increase, but its a dog under 3k.....

 

[silverscottsk10]

Cap was bad
Got msd cap/rotor and an accell super coil
Fired right up
Loss of power under 2500rpm with dual plane
But give me a week or two and it will be replaced

 

[silverscottsk10]

High performance stuff isn't my niche
Slowly teaching myself so bare with me lol

 

[silverscottsk10]

Finally got my stock dual plane intake and got the single plane off
Be putting that on tomorrow

 

[MadOgre]

I'm running the Comp Cams 12-300-4, which is a marine/truck cam. Simulations give 422 lbft of torque at 2500 rpm, and 275 hp at 4000 in a base crate engine 350. Above 4000 rpm the power drops off, so I went to the next size heavier weight on one side of the TH350 governor to move the WOT shifts down.

If you want to keep more top end, the next two cams in order that I would recommend are the comp cams 12-235-2 (415 lbft @2500 and 290 hp at 4500), and then for a bit more on top and a touch less on the bottom, the comp cams 12-234-2 (415 lbft @2500 and 302 hp at 4500).

The peak numbers don't tell the whole story. The peaks are all about the same, but the torque curve coming off idle on the 12-300-4 is stupendous, then less with the 12-235-2, then less again with the 12-234-2. On the other hand, the horsepower is lower and drops off sooner on the high end with the 12-300-4, and the horsepower is a bit less with the 12-235-2 than the 12-234-2. With cams, it's all trade-offs.

But for big torque out of the hole and a really hard pull through 3500 rpm, it's the 12-300-4.

Lift on the 12-300-4 is only .390 on both intake and exhaust. I am running it with stock springs with no problems. The other two cams have lifts in the .450 range, and you might have problems with stock springs.

The 12-300-4 is a tremendous driver. Boatloads of torque at any rpm I drive at. Winding out a 350 in a truck just seems kind of out of place, so horsepower numbers over 4000 rpm just don't matter to me.

What do you have going for heads on that setup Rich?

 

[silverscottsk10]

So swivel isn't working worth a damn to get these intake bolts torqued
Any better ideas?