yeah, most people suggest too much duration for a stroker that is going to be used on the street, IMHO

dump the 750 eddie, I'd go with an 800 eddie, or a demonsizzler built t-quad. I know on my 360, I gained a ton of drivability and 2" of idle vaccuum switching from the 750 eddie to a 600. there's a lot of info on the web of people never getting the 750 to run good...sounds like there's a flaw in the design of the internal passages of that carb

intake, Eddie RPM or air gap for a square bore carb, probably a eddie LD340 modded for the t-quad, if you can't find one, probably a weiand action plus, or maybe an M1 single plane (hard to find good spead bore mopar intakes)

for a cam, I'd use the lunati voodoo 60403 if you want to stick to a flat tappet.

fresh heads, a good 5 angle VJ, maybe some home porting opening up the bowls and pushrod pinch

should have a very strong, yet mellow engine that should idle at 800 RPM with probably 14" vaccuum