Recent content by legend57
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Passing CA Smog help - High HCs
For those switching from Edelbrock to Qjet, here is the parts list I've come up with (so far); Choke: Since the Qjet 4MV carb has a divorced choke (and I don't have the choke) I am going to try one of these out; https://www.carburetor-parts.com/choke-kit-cu1445 Hard Fuel line from pump to...- legend57
- Post #111
- Forum: Carb Fuel Systems
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Passing CA Smog help - High HCs
Yes, that is the kit. Maybe they figured out an offset to apply given the O2 being added from the air pump. I found a couple of threads where someone had trouble with it, so I hesitated to go down that path. Given the O2/fuel ratio is fundamental to how the fuel injection works, I'm just not...- legend57
- Post #108
- Forum: Carb Fuel Systems
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Passing CA Smog help - High HCs
I extensively researched about the smog compliant MSD fuel injection kit. I was very close to ordering one a while back, until I learned that it won't work if the truck has the smog pump that injects air into the manifolds. It messes with the O2 reading. It is too bad that options to actually...- legend57
- Post #101
- Forum: Carb Fuel Systems
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Passing CA Smog help - High HCs
I just ordered one of the National rebuilt 4MV carbs, #ND4528. I'm not familiar with the Qjets, so need to research all the port connections.- legend57
- Post #99
- Forum: Carb Fuel Systems
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Passing CA Smog help - High HCs
I'm monitoring this thread closely as I'm in the same boat. My '76 K20 has the heavy duty emissions (no EGR, no CATS), and I also went with the Edelbrock 1400 carb. I'm still building the truck, so haven't gone for smog check, but I guess I can now see the future (fail). I'm wondering if we'll...- legend57
- Post #91
- Forum: Carb Fuel Systems
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Np203 to 700r4 brace
That's what I did (see attached pic)- legend57
- Post #4
- Forum: Transmission & Transfer Case
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I’m interested in swapping out the TH350 for a 700R4
I'm in the process of installing a 700R4 between a 400sbc/NP203 in my 76' K20. I went with Gearstar for the transmission and they built it to handle the torque (Level 3). I'm extremely happy with the kit and quality of the work so far. I haven't driven it yet, so that review will come later...- legend57
- Post #8
- Forum: Automatic Transmission
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New member from California
Great looking rig! From a neighbor, just a few hours north.- legend57
- Post #20
- Forum: Introduction
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Fixing vapor lock now that I barely made it home, experience with 3 port filters?
Before you start changing things, you may want to add a fuel pressure gauge near the inlet of the carb to monitor. Check it occasionally during a drive and see if it changes. I had a similar issue, but it ended up being sediment in the tank that would slowly gather on the filter sock in the...- legend57
- Post #8
- Forum: Engine & Performance
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350 TBI in California
I'm in the same boat with smog, but my truck is a '76, first year requiring smog in CA. (I'm in San Jose, CA). I'm using the AFR heads, which are some of the best out there (IMHO), and they have a CARB EO, #D-250-2. https://www.airflowresearch.com/chevy/sbc-eliminator-23-cylinder-head/ Note...- legend57
- Post #15
- Forum: Engine & Performance
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New Member and new owner of a 1976 K20
Hey All, Thought I'd provide an update on the build. I took the rolling chassis with the Cab and Bed over to the body shop earlier this year. He replaced the passenger floor pan, repaired the cab corners, and repaired the rust spots on the Firewall. He then went to install/fit the new doors...- legend57
- Post #47
- Forum: Introduction
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SBC Cylinder Head Decision
I ran a Comp 270H on a 400ci SBC in my '57 Chevy for years. Great cam in that car. In my '76 K20 I'm building, it too has a 400, but I'm putting the AFR 195s on it. After talking with quite a few folks, including the engine builder, he thought the displacement warranted the extra volume. The...- legend57
- Post #8
- Forum: Engine & Performance
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400 SBC Compression Ratio
I have a mildly built 400 in my '57 Chevy and just did a compression test on all cylinders just to check engine health. With the engine cold, all 8 cylinders ranged from 170-180psi. It is best to test with the engine warm, but I was just looking to see what the variation looked like. The...- legend57
- Post #10
- Forum: Engine & Performance
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Runs smooth, then sputters, then smooth, then sputters
I had a similar issue on my '57 Chevy years ago when I had crud in the gas tank. It drove me crazy because it was intermittent. The crud will collect on the sock in the pickup, and then slosh off, end then collect again at random times. I went crazy chasing down ignition and carb ideas. I...- legend57
- Post #22
- Forum: Carb Fuel Systems
