451 Build For the 67 JC B'Cuda

$10G's could buy alot of assembled motor...Go for what you can afford.

True, but it is really hard to know if an assembled engine is any good. I tried to sell my low deck 470 with TF 270 heads for $12K and didn't get a single offer on it. And that is an engine that has been dynoed at over 700 hp and has been featured in multiple magazine articles. I have videos of that engine making 700 hp and nobody wanted it for $12K. So if I can't sell a complete engine then good luck to other folks trying to sell engines.

For the OP - have you read the various TF 240 articles that I've written? You can find them all on my website: Tech Articles | AR Engineering