.433 lobe with Hughes 1.6 rockers, Victor heads, PAC 1243 spring(same as comp 943), 1.900 installed height, peak power at 6800-7k.

Chip is running the same spring at 1.950 in his 572 hemi with .420 lobes, and when he’s spraying it, it turns about 7500 through the traps.

68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads