Yeah the 250 has a lot of sentimental value to me and if I can make it work then I'm going to do what I can to keep it. If it's a lost cause then I will run an LS7 and a blower backed buy a t-56.
So that being said, is 400-500hp with EFI a turbo or supercharger really a something that can be built and hold together.
The build thread on the 67-72 Chevy Truck message board.
Build Thread