there is a forum member here called HORSEPOWER that has made serious hp with a blown motor, pm him or talk to your cam manufacturer.. like i posted if i was building a supercharged motor i would talk to the cam grinder about what i needed.. in my case i would call megacycle but there are many good cam grinders out there..well what i was told if i remember correctly was to get something with more lift and less duration.. But again, how much more lift and how much less of duration....