I've got comp cams PART # 12-239-3 lift is Int .462 Ex. 480. DURATION AT .050 is intake 218, ex 226. Lope seperation 111 deg. My machinist claims it will be too radical and lope alot. This I don't want in a street/trail K5. What I was wondering was has anyone used this cam? Do you think it's too much? It will go in a 383, 9.5 comp, headers, performer intake. I have an automatic and run 4.10s with 33x12.5 BFGMT. Cam selection has always seemed a black art to me. I've also considered compcams 268H. What do you think?