You have to put the right springs on a roller anyway, so it's no big deal to make sure there is room for the lift. Lift much over .500 doesn't seem to help Vortec heads much anyway, but right up to .500, + or -, is good, mind you the same combo in this vid, (motor, cam, tires), took the truck to 12.24 in the 1/4 mile, and happily tows my boat and race car around.
I had thought of picking the next size smaller
cam, but my machinist and I decided it would have put the dynamic compression ratio to high.
ASE Certified Master Automotive Technician (well over 3 decades of experience,
'93 S10 SB,RC, Comp XR276 Hydraulic Roller, Vortec head 363, 400 + hp, built 700R4, JW 2800 stall lockup converter, 3.73 posi, disc brake, narrowed 8.8 Exploder rear, LS Camaro front discs, Cal-Trac clone traction bars, Best N/A passes to date: 7.76 in the 1/8th, firstname.lastname@example.org mph in the 1/4, gonna spray it one of these days...
76 Chevy Vega Drag Car, TWIN TURBO 355, P/G trans w/ brake and JW 4000 stall vert, 4 link back half, narrowed 9", 3.50 gears, 29.5x10.5W ET Drags. Best time9.669 @ 139.79, Latest video: https://www.youtube.com/watch?v=S59riYn ... ata_player