Will a 4bbr really help any

1973dusterkid said
summit has cheap 3in headers I can reduce to 2 1/4 or 2 1/2

3 inch?? Are you talking about the collector? Yes, you can reduce it. Put a 4v carb on it, dual 2 1/4, I run 2 1/2, and it will wake it up some.

Remember an engine is an air pump, air in air out.