Heads/cam/ roller rockers on LT-1 motor

[elctron02]

Well Im rebuilding my 1972 Lt-1 350
Stock hp at rear wheels 255hp....

This is what Im doing!

Heads..edelbrock 64cc old head 76cc stock

cam lunati 233/241 dur, in.504 ex.525 110 lobe 2200-6400 range

old cam 228/228 in/ex.468

roller rockers with roller tips 1.5 ratio

custom size push rods by Manley

hooker headers/side pipes

edelbrock intake and air filter

carb 750 double pumper

be cool radiator 40-60% cooler

orginial block with pistons

trans-m21 4 speed
rear 3.70

HOW MUCH MORE HP WILL I GET @ REAR WHEELS

WHAT DO YOU THINK?

I THINK 50-60 MORE HP