Cam was to replace 2500-7500 power range cam(hyd roller)105mph,2 nd gear(auto)3.08 rear,205 50 15 tires.would not go any faster in drive.also 390 holley 4 on 4bbl offy inake,headers,unported heads(limiting factor i believe).ignition was hipo too. Slower then stock below 15-20mph.have 4.56 and 3.40 8inch stumps that i thought of using for takeoff but would not help top end.was going for street-strip car.