Quote Originally Posted by S&S62biscayne
Has any one looked at the Air Flow Research website.
One of there dyno figures shows 465hp with 180cc heads, 9:1 comp,
.480 lift flat tappet hydraulic 230 @ .050. .
Not sure but that seems alot of power for this combo or is it just me.
Any thoughts please.
I build engines for a living. The last 383 i done had 195 AFR CNC ported heads, 10:5:1, 507/510 lift hydraulic cam thats what he wanted i reccomended something around .550 lift with the comp it had. air gap , BG Mighty demon, balanced thats why i raise this question of 465hp
It only made 420 hp at 5800
What was the duration at .050 of your cam with 507/510 lift?