drag racing induction sys

Rear end: HD Dana 60 from a 1 ton Chevy, 35 spline axles, Yukon spool, 4:10 gears. Disc brakes, super stock springs. 15x10 rims w/ Mickey Thompson street slicks. Hooking wasn't a problem.

Transmission : built 727, STD pattern, billet 3000 stall.

Engine: 472 Hemi. 9.5 compression, iron heads, mild port job. Stroked crank, STD bore.
Mopar dual plane single Carb intake, 830 Holley

OK. I'm sticking by my first post. That carb, if it's in proper working condition, correctly jetted, and tuned should not have a problem on that engine.

You are barking up the wrong tree thinking about a carb replacement at this point.