650 dp Carb Big enough?? Opinions Please

I have a 69 340, .030 over, 10 to 1 comp, stock x heads, running elderbrock rpm air gap and cam is going to be a Comp nostalgia plus 20-674-4 ADV. DURATION 292/299 VALVE LIFT .508/.508. My question is i have a holley 650 DP is that enough for my car? Or should i go 750? Just Rejet to bigger jets?

-72 dart 4spd 323 surgrip
-Not drag racing just a street car, if anything might autocross or something

Shesaid has told me to go bigger but looking for some other .02 cents :D