quickfuel fuel systems question 454 street buiuld

[hadmtrst]

contemplating a caarburator choice for a mild 454 build for a street driven mild perf build ,anyone used these carbs ?what size ?650? what series? 530 lift cam,edelbrock perf rpm int,procomp alum heads,stock stroke,.030 flattops on this build 650 0r would a 750 be a better choice thanks