i have a 350 i built for my 87 iroc, havent installed it yet.
mid 70's 350 601 heads 58 cc 2.02 1.94 valves, ported and polished. stock pistons, cam is .218 @ .50 .450 lift. 274 dur. 106 lobe seperation. .025 deck. .015 head gasket. edelbrock 650, generic aluminum dual plane. long tube headers. sounds good but like i said not installed yet estimated compression ratio is 9.7:1 im running 91 octane through it. does anyone have any comments or advise. hp estimates? im not going to change my build. and its going to be paired to a rebuilt 700r4 with b&m shift kit. stock stall. it will work with cam though.

 

Really hard to say without knowing some flow specs on the heads
Could be 300 325 350who knows

 

not sure of flow specs. thanks for the response. an the exhaust valve is 1.60 not 1.94 oops

 

300-325HP is my guess, with a good lope from that cam. Specs on the cam seem like Cranes old "Saturday night special" grind. Should have a strong midrange