Just got my new stick today.
DRAG RACE Xtreme RX Rollers - These camshafts use COMP’s new RX Drag roller profiles to give more lift, more area under the curve and shorter seat timing than any other high RPM drag racing series we have offered. Great for all out drag racing applications such as Competition Eliminator, Fast Bracket, Quick 16, Nitrous and Heads Up applications.
Any talk about 4/7 not good for conventional head. Really not sure about my cam selection old SAR 565 made 900hp the valve lash has a large spread its what Sonny said made the best power, Revs are very lazy but goes mid to low 9's on hp with a nitrous converter. Thanks