So, I now have two Chevy 350's (one with a Holly 650 and the other with an Edelbrock 650) and I need to learn how to adjust these carbs.

I am currently trying to get the Holly powered engine on the road. I can get it running, but there is a lot of popping (backfiring) as it idles and more when the engine is revved.

I am starting from scratch here. The fuel pressure is about 3lbs (I may need to adjust the regulator for more?) and the warm idle is around 1100 rpm.

Since this is in the back of a Fiero, my dual-exhaust is pretty short. I am only running high-flow cats, so perhaps the cats are igniting the extra fuel - causing the pops?

I also don't have the electric choke wired up. I imagine that will help me start it a little quicker, but even when it is warm, the engine wants to die if I punch the gas. Easing into the gas makes the engine rev just fine. After running the engine, by garage smells like gas - big time.

Anyway, I don't know where to begin since I have never played with carbs before. Any good sources for info?