You have any idea how much it'd cost ya to get it to run well?

That MPFI setup is $$$. A GOOD set of heads like a set of AFRs are ~$2000+. Then you've got a 3 speed auto...LOL there goes ANY fuel economy a BBC could provide. You'll need a real cam to feed it too. A GearVendors OD is ~$2500. I do not think the SS454 trucks ever came with a 4L80E.

Those stock heads are the worst apparently I've heard that came on a BBC. TBI sucks for performance also.

I'd maybe consider one as a 2nd vehicle but dropping $10K on an old 1990 model vehicle is silly to me. You could just build your own for far less...