Spin,my latest project might fit what you describe,,,,might?My street car is a 1981 vette,so far changed almost everything.256/264 @ 050 roller cam.drive ability is very good after 1600 RPM.I can drive @ 45 MPH in O/drive and accelerate smoothly and very quickly. below 1600 rpm I need to go down a gear.The reason it will still respond well with that big of cam is the intake centre line is only 108 degrees. Im very very sure this engine exceeds the 1.2 horse power per cube that I feel is normal.If you have a calculator,plug in the numbers and see what you get?
specs,,10.75:1,cam 256/264@050,,420 lift x 1.6 intake/1.5 exhaust,,950 modified hp,vic junior(instead of super vic for lower RPM and smaller cam) 4.155 bore/4 stroke,dart 227 cnc ported heads with minor polishing,2.07 int valves/1.6 exhaust,,rocker shafts.callies light crank,wiseco pistons,cam is solid roller and 108 separation(square cam,more for road race)
let me know what you think it makes?
I am making a few changes and painting the car.I will chasis dyno it after all that.The engine has been on a dyno before installation,which is just a ball park because my headers and carb are different and I run full exhaust