View attachment 1715125457 The engine came out of a 66 Barracuda. The owner is a professional engine builder with a lot of racing experience. He's the one that recommended the LD4B so I'm thinking it should fit. Currently it's running an Edelbrock 500cfm carb on a cast iron intake.
It would be interesting to dyno a 273 with the HP manifold vs the LD4B. (and start the readings out at 1000 rpm instead of 3000 like most dyno operators do)