Im trying to get more power out of my Chevy 305 for an 81 el camino i wanted to know what would be a better fit a edelbrock 500 cfm carb or 600 carb?

Answer 1

(305 displacement x 5250 rpm) divided by 3456 = 463 cfm carburetor 500 cfm x 3456 divided by 305 = 5666 rpm I would say if you are just using the engine for the street, a 500 cfm carburetor is more than enough. Perhaps an edelbrock with an electric choke would work nicely. The carburetor is only supplying the fuel. A longer duration cam, say around 200 degrees at .050 might perk up the engine a little and still let you run vacuum for brakes and automatic transmission. You would just have to read what others have done and look at performance parts companys online and see what people say.