I am stroking my 351w to a 393 and wondered if selecting a lighter crankshaft and rods would make any difference in HP. I am not building a high revving engine so I think the answer is no. The car is for the street and I am thinking about going with AFR 205's, custom grind Comp Cam, and a Vic Jr. intake. I have been round and round on which road to take, the AFR 185-Performer RPM (450-480 HP) or the AFR 205-Vic Jr. (500-550 HP). Anyways, which bottom end material will be the best for my application? I will choose from the SCAT lineup and need to know which would work the best and which is overkill. I will be using the SCAT I-Beam rods with 7/16" cap bolts. Thanks.