I am wondering what cam to get and I need to decide quick so I can get the 75 up and moving again. block I am messing with is 454, just bored 30 over the rest are bolt on's, performer intake, holly truck avenger and hooker headers with 3 inch pipes and 3 inch in/out 40 series flows. any thoughts for those who have a comp cam extream 4x4 cam? gas milage does not matter to me, but I dont want something to aggressive for crawling too. Heads are just rebuilt but need to find #'s on them they are stock but opened up some /forums/images/graemlins/ears.gif any 454 guys out there?