The intellectual post,about old school camshafts,the newer ramp cams.. and what's needed ,in modifi

For what I'm doing, high 11s good air, low 12s crap air 1/4 mile a .500 lift solid FT (Comp Cam XS274S) with Howards EDM lifter works fine. The MP magnum roller cam single spring/damper installed at 1.70 spring height with OEM LA retainer on J heads handles the 6K shift no problem. I also run tighter lash .012/.014 cold vs .016/.018 hot that cam card recommends. I use Valvoline VR1 30W high zinc for break in and then switch to AMS Oil 30W.