Which single plane intake?

I run a Victor with a 1" spacer with a 750Demon, and a 108* .525/.525 Isky cam thats 256* @.050 IIRC. At 10.5cr and with bowl worked and slightly ported heads with bigger valves, my 340 runs just fine on the street with the 4 speed. Its also at 3000lbs and runs on a 3.91 gear, but a >4.30 set might be in its future.