I'm helping my friend build a 500hp 460. It's a 71 460 with dove heads i believe. How could we go about achieving this goal with stock heads. Also, what compression ratio will this engine have with flat top pistons
500 outta a 460 is not too hard. 10.5-11-1 static CR, Cam in the .218-.224 @.050 .500 lift 110-112 lsa, intake, carb,and headers Port and bowl blend the heads 3-5 angle on valves. Early "straigt up" timing chain ....and you are there.