Another BB intake selection?

383 block 440 steel crank= 426 low deck. 9.98-1 compression with EDDY rpm performer heads out of the box. RPM Performer intake. TTI 1-3/4 headers. Lunati solid lifter cam .544/.566 with .243/[email protected] AED 750 HOM carb. 32 total timing in by 3000 rpm. TCI 3500 stall flashes to 4000 with all the torque. 3.73 gears and a 275/60/15 drag radial. motor falls off at 6000 rpm so i shift at 300 over peak 6300.
Have you ever ran 1/4?