I am actually accumulating the parts to put a twin turbo 2JZ out of a Toyota Supra in my 56 Chevy. I want something I can drive my kids around in reliably, but still put some stank on when they're not in the car. I thought long and hard about a 250 with a 292 crank, various versions of head swaps, but the almighty dollar and my nephew constantly whispering in my ear made me buy the big bag of rice. I can get 600-800hp way cheaper with this engine than the 4.2, and use tuners with lots of experience. Oh, and listen to lots of fast & the furious jokes.

"The first rule of overkill: You can never have too much overkill."
"Overkill is underrated."