Quote:

here's my build...

383, 440 stroker kit, 438 cu. in.

eddy RPM heads--84cc chambers, OOTB
zero deck flat top pistons with valve reliefs
10.5:1 compression
comp XE275HL cam
RPM intake
1 7/8 headers
holley 750HP

made 505 hp on the dyno, tons of bottom end. over 500 ft lbs torque from 3000 rpm through 5800 rpm

with stock 906 heads reconditioned to like new, all else being the same, it was about 9.5 compression, and maybe only about 450 hp, due to the lower compression AND lower airflow of the heads




I'm trying to guess my HP. Do you remember off the top of your head what your cam specs are? Solid or hyd? Our combos are similar, but I went a little over/more/bigger on everything.