I'll take it easy on the TH350, but I've been told that tranny can be beefed-up to handle 500 HP. Don't know if that's true. My 454 only puts out 365-375 HP, I think I'll be okay. My aluminum "Be Cool" radiator is currently installed in my '86 GMC, I'll have to fabricate brackets to implement its installation in the '71's radiator core support bracket. Inner fender wells might be a problem touching my headers. So, I might just use stock exhaust manifolds, if I can locate some. Otherwise, I'll trim/beat a little metal out of the way. Thanks again for the responses.
