A consistent strip car (stock converter) using both manifolds would be a good test. I could do a low rpm test on the Desktop Dyno if I had flow rates for both.
Thanks for the info. As I'm not a mechanic the conversation is a little over my head. I've had my engine on a dyno and it confirmed what I already knew. Torque was all in the low end and hp dropped off quickly after 4000 rpm.