I have a stock 350 with a Performer RPM intake, Holley 600 vac. sec., HEI ignition, headers and it is running rich....no smoke, but running very rich. I have tried adjusting the air/fuel on the Carb. but it still runs rich.
Any suggestions? Thanks

are you saying it's rich because it smells bad? if not, what is making you think it is rich?

If it's the smell, this is often caused by an intermittant misfire, you're smelling raw unburned fuel mix coming out the exhaust. This is usually caused by an ignition problem.

the 2 mixture screws on the sides of the metering block, what happens if you run them all the way in? it should die.

what is your timing set at?

Sorry to hijack the thread, but what can I do about the intermittent misfire problem? I'm having the same problem as Mike, just a little different setup. BB with RPM Air Gap and Holley 770 SA, and the fuel smell is just terrible. Using a Summit brand HEI dist