I'd add to the advice already given to check if the FE block in the car you are considering has been overbored to .030 or not. If it has, there are lower chances the car's cooling system will cool the engine very well. If I ever bought another big block, I would want a standard bore block, and have 8 sleeves installed instead of boring it.
I'd personally buy a GT350 and buy a stroker crank to make it 408 or 427 CID and 550HP reliable horsepower. There's a guy out in Indiana with a yellow '69 GT350 that built a really nice, tastefully modified car. I don't remember his name, but he would be a good person to contact.
I'd personally buy a GT350 and buy a stroker crank to make it 408 or 427 CID and 550HP reliable horsepower. There's a guy out in Indiana with a yellow '69 GT350 that built a really nice, tastefully modified car. I don't remember his name, but he would be a good person to contact.