Re: EFI and new cam selection
Vortec Pro put me on this Isky cam. Currently I have a Comp Thumpr cam with no vacuum which i've read TB FI doesn't like. My Fitec runs fine, but i have no comparison. So I'm throwing the Isky in this weekend and looking forward to having vacuum and, oh, power brakes..
396265/275 RR-265/275 HYDRAULIC ROLLER
Good mid-range power. Good vacuum & good idle. 3.23-3.70
axle ratio. 9.5-1.5:1 compr. Computer compatible with stage 1
chip. Stock converter. Up to 650 CFM Carb.
2000-6000 lift .530 .533 lash .000 advertised duration 265° 275° @ .050 218° 228° LSA 112°
67 Chevelle 454, M21
Gen IV 454 (out of C30 ), 390 heads 1.88/2.19 valves by Vortecpro, with ISKY Hyd Roller cam (at 050 218 int./228 exh, lift 530 int./552 exh.), RPM performer intake, Fitech 600HP, Dougs headers, and M21, Gear Vendors OD, 3.73's, UMI Suspension, Viking coilovers.