[DeTomaso] Early engine question

Guys, Doing a garage cleanup and stumbled across Lori's original 1971 Pantera intake and carb. I always believed that Panteras came with spread-bore intakes and Autolite 4300D carbs. But this intake is a square bore with matching Autolite square bird carb. Carb photo: Carb ID tag: Engine ID tag on intake: Intake casting number: So what do you smart people think of this? Steve? Mike Sent from my iPhone