Thanks for the input.

The gas is ethanol free and fresh. I'm running the same gas from the same can, in a different older car. I don't believe the engine wouldn't run and idle so well if the gas was bad.

True, I'm having issues with two different carburetors but they are different issues though. The 32/36 runs the engine strong when it idles, I just can't get it tuned. The rochester B wouldn't even run the engine.

I ran a compression test on each cylinder and I'm around 110 for each cylinder. The new plugs that have about 10 minutes on them are already dirty black.
The resistance on each spark plug cable ranges from .933 for the longest cable to .675 to the shortest cable. The wires look cosmetically fine.
The mini hei coil low side resistance is .001.
The fuel pump pressure is 3.5 when I can get the engine idling.

Again, it starts and runs fine with the choke engaged. If I hit the gas to disengage the choke, the engine won't idle. If re-engage the choke and feather the gas pedal I can get it to idle. The choke butterfly is open, but the 32/36 must have a fast idle choke, because the idle increases significantly and keeps the engine running.
If I hit the gas pedal again and increase the engine rpm, the carb wants to die.
I've messed with the idle and idle mixture adjustments, but I can't get it to idle correctly.

If I hit full throttle it runs fine, then once the rpms it stalls from not enough gas. Then if run it off choke, it gets too little gas for regular idle (unless the fast idle choke kicks in).
Weird, I'm stumped.










1951 Chevy 3100 1/2 ton (1957 235, 4 speed, 411 rear)