Originally Posted by elcamino_bert
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.
a set of 305 vortec heads and matching intake would make big gains in airflow,compression and match your cam much better.
a 2500 stall conv and 350 rear gear ratio would really wake it up
with your combo your going to gain approx 30hp
with the combo i mentioned i bet you get 80hp
do yourself and ppl around you a favor give up 5 of those hp and weld some cats in it please