diesel_lv
Well-Known Member
So every always wants to get into the debate of ported vs manifold vacuum advance. I talked at length w the owner of 4 Seconds Flat. He made total sense. The ported is for cars that had some sort of computer control/smog control. Manifold is for those that do not. It is a lot to go into, but actually very simple. But for further proof, here is the definitive from a much respected source. Edelbrock!!!