This cam will make a stage 3.2 on an Ls7 @ 1.8 rocker ratio 677/677 lift duration @ .050 240/246 / 112 @ 1.7 rocket ratio lift is .641/.641 if used on an LS3 This cam has soft ramps made for road racing those why I used it on the street and can be used in a hydraulic lifter application just be sure the lifters are good to at list 7300