Mine are the 1.61" venturi also. It has been 148-150 mph with Edelbrock 750's in good air. I'm sure that these have more than enough airflow at my rpm (7300 max). Dry flow was over 1100. For sure it picked up at the starting line. Solid mid 1.2x 60ft leaving at 3000 rpm off the foot brake. Already was 149 mph in OK air. Last weight was 3335 with me. We'll see how it runs tomorrow.
Doug.

Last edited by dvw; 05/12/22 06:36 PM.