Holley 750 hp vacuum secondary or Holley Double pumper?

I have a 1974 Duster, with 360 magnum 9.1 compression, EQ cylinder heads with 2.02” in take valves and port job, mild hydraulic roller cam, 727 trans with 3500 stall with 3:91 sure grip 8 3/4 diff. I have a Holley 750 Hp vacuum secondary Carburetor on a Edelbrock air gap rpm intake manifold. Would there be any advantages to buying a double pumper carburetor for better preformance or Is my combination good?

View attachment 1715836519

Im a total DP’ee fan!