ok i have a 4 bolt main block bored .30 .125 dome pistons, stock crank. gm bushed pink rods, performer rpm intake with 600cfm carb. rhs vortec heads 2.02 1.60 valves 64cc chambers. tranny is a th350 with np205 case. I need to get a cam for this set up just dont know what will be a good one. its goin in my 91 pickup with trail gears 5in hd springs and 39.5 tires. will be used mostly for mud some street time. if you guys could help me out on choosing a cam that would be very cool. i was looking at comps 4x4 cams.