Thanks a lot guys I think I will get a 750 and tune it from there. I have an AFR meter that I'm putting on the car this year too so that should at least tell me where the tune is.
The car has run 10.91 with a big Holley so it will probably slow down some with a 750 but maybe not shruggy I might be overcarbed.
So I'll be looking for a Performer 750 that hasn't been touched yet so I have a good base to start tuning with.
Being a stick car I don't think I will have a bog issue because I leave on the 2-step at 4500 with the pedal on the wood.

Gus beer

64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60