350 problem

I just put a 350 in a 67 chevy pick up. Engine runs great. But now, when the engine warms up the engine will idle very rough, then not idle at all. Higher rmps are great though. Seems like something is breaking down. I have electronic ignition on it, dual exhaust, edelbrock intake and carb, and electric fuel pump. I thought it was the fuel pump at first, but I have ruled that out. If anyone has any ideas I would appreciate it.

Found the problem with the warming up and running rough. replaced the electronic ignition with another I had. Now I failed the emmissions test. Passes the loaded test with flying colors, fails the idle test. Any Ideas would be helpful.

Have you played with the idle mixture screws at all? You could be running a little lean or too rich at idle.

can you post the numbers from the test?

I am sorry I dont know what you are talking about?