need a holley 750, but which one?

[1Bad68camaro]

I just found out the holley i'm running is a 650dp, i thought it was a 750. Its on a 383 stroker with 10.3 to 1 compression, brodix track 1 heads that have been cnc ported, lunati roller cam with 525 intake and 540 exhaust lift and 232 degrees intake and 242 exhaust duration. A local shop recommended going with a custom 800dp he builds or a built up 750dp. Anybody know which of these would probably suit my needs the best. Its a weekend car for playing and showing off. But needs to be driveable. And does anyone want to take my freshly rebuilt 650dp as partial trade on a 750dp or vacuum secondary carb? Thank you