Thanks man. I'm told it's the original 307 in it. I still have yet to dig deeper into the VIN and engine/drivetrain stamps to confirm. Hopefully next time I get her up in the air I'll do that. It's WAYYYY over carbed with the Edelbrock 600 we bought it with. Originally I believe it came with a Rochester 2BBL. And around 300cfm. Chrome timing cover tells me likely someone did some valve train work and/or upgrades. Former owner says he jetted the carb down but it still runs super rich. Nice black tailpipe to go with that be assured LOL. She's the single exhaust flavor currently.