273 Engine W/4 BRL Intake

Bought engine in the 90’s, (my car doesn’t get driven much), as a rebuilt engine. Was told it has a different camshaft in it and he said it was a Commando engine but he put different heads on it because he didn’t like adjustable rockers. I never dug into it because it ran good enough for me. So, I’m really not sure if it’s a Commando. It’s located in Ocala Florida.