750 Holley or 650 Holley DP carb for 340-4 speed?

My 340 4-speed loves my Holley 650 DP carb, I am running a M1 intake and 1" super sucker carb spacer, Hooker super comps and 4.10 gears :burnout:

what 1/4's you getting with that set up

love the M1 intake but its killing me on the 60' compared to weiand xelerator
(but thats not as hard as the M1 after the 1/8th)