help with 305 hp
I have an 85 el camino. I bought some accesories and was wondering howmuch HP I would gain, and how I could get more? 270 cam, long heddman headers (straight pipes, no cats) new timing chain, .030 bored, rpm air gap intake manifold, lifters, perform 1.5 rockers, valve springs, edelbrock 4 barrel carb, and I'm getting a valve job on the heads. and I'm thinking about buying some iridium spark plugs. Also I will be putting in a 700r4.