Horsepower Estimate?

273 said

I'm not trying to change your mind think whatever you want. I just don't agree.

How's a 360 with modded 318 heads, and a cam about the stock size as a 340 cam with a terrible intake anything like the OP's engine? And it even made 305 hp.

Let's put a mild 8.2:1 360 on the dyno.

I think the 340 build up I showed is a little more in line with the OP's engine.

Click to expand...

That IQ52 motor was 297 hp. much smaller cam 260H (comparable to stock +/-)

OP motor has significantly bigger cam, RPM intake, and probably comparable heads (IQ52 put 1.88/1.60 in 318 heads w/throat work), "650" Holley (IQ52: 1850 Holley)

Sounds like Crackedback guestimate of 300-350 seems pretty safe.

Which exact 650 Holley the OP has might be significant to know. Is the 4150 style 650 significant improvement over the 600 1850 style?