anyone ever flow test 383 A body manifolds say vs 383-440 hp manifolds

I am in Oregon myself and well aware who owns AR. There is only one AR part on my GTS and I have never consulted Andy on any aspect of the project.

I have two other cars that use AR Engineering cam sync setup, jesel belt drive specific crank trigger parts, throttle linkage, spring hangers, Wilwood brake kit and several others. Both of those cars are b bodies and irrelevant to this conversation.
Well OK then and thanks for not answering my question but the best of luck to you and your build.so sorry for stepping in.