Hi,
I"m running a 289/334 (.040 over), TW 170 heads, 10.6 CR, 680 custom designed Holly, Performer RPM, full roller conversion, custom designed cam (.570/.562), TRI-Ys, 2.5" exhaust system, and a Jacob's ign. system. My junk dynoed at 392 RWHP at 6100 w/402 RWTQ @ 4200. My rotating system is...