I hear you but for decades I had to hear about how terrible 305's are. Maybe back in the '80s & '90s when you were stuck trying to port & polish the stock heads but TFS aluminum heads solve that issue nicely -- and yes, they're (relatively) expensive as far as Chevy heads go.
But if I owned that silver '78 Camaro George listed? Good, clean and intact cars are getting rare. I'd happily pay $5-7K to mod it while keeping it all numbers-matching, and not care fuck-all about "getting my money out of it".
EDIT: Actually fuck that -- these Trick Flow Systems aluminum heads are $450! Go fuck yourselves, Chevy guys who think aluminum heads are too pricey for a 305! I'll take that shit ALL DAAAAY!!!