Go to utawesomeperformance.com Marty knows Magnums. I have his UTP 500 cam in my LA 360 with stock magnum heads and this cam pulls really well. Send Marty an email an he'll get in touch with you. You would need a tune with this cam because of the 108 LSA but it's worth it. What I don't like about the Comp and especially the Hughes cam is they have too much lift. Stock magnum heads quit gaining air flow at about .450 lift, anything over that starts causing turbulence. The UTP cam gives you more duration than either of those cams and the tighter LSA improves the lower end torque.