I dont know if this has already been covered or not, but if you haven't read it...its worth taking a look at. Its how to get 400 HP by just changing a few things. Its based on a Carburetor set up. Worth a read anyway though.
http://www.carcraft.com/techarticles/116_0307_ford_302_v8_engine_buildup/
http://www.carcraft.com/techarticles/116_0307_ford_302_v8_engine_buildup/