72 Valiant/Scamp big block for sale nearby, need info

I have a scamp. Think of it as if a duster and a dart had a kid. Dart body. Duster grill/fenders. Everything is interchangable like most a bodys. It's actually the valiant scamp (here in canada at least) the valiant is the "base" model and the scamp is the "trim" level. As far as I understand it. And as far as my insurance here tells me.

Big block's in these smaller A bodys are fun. Constant tire roasting fun. But expect a lot of the usual problems. It'll be impossible to reach the back two plugs on the drivers side. Everything will be a 1/4" away from everything else. No power brakes. Forget power steering. Etc etc.

That car looks well done. 18,000 isn't ridiculous. I bet he's got at least that much into it. But like diymirage mentioned. With that black engine bay I suspect it was done by a chevy guy.