M1 Single Plane Question

Here is my combo

68 Cuda Notch
275/60 M/T
4.11 Locker
Dynamic 3200 stall
A999 w/2.74 1st gear
408 Magnum(Formerly 380 Crate)
4.00 Eagle Crank
175-185 PSI Cyl. Pressure
Forged Pistons
OOTB Eddy Heads
M-1
MSD Ready to Run w/MSD 6AL-2(one silver, one blue spring, w/black bushin)
Electric Fan
Underdrive March Pulleys
Hughes Roller Cam, 238 and 242 @ .050, .555 int. and .585 exh.
Crane 1.6 Roller Rockers
Trying to figure out which carb(750 QF and a 950 QF, both D.P.'s) and messing with spacers

Whats that combo running for times??..are the Edelbrocks just as they came out of the box??have you tried the air gap intake,thats what i run on my 416 with a quickfuel 850 and 1" wood spacer..results were great 11.0's at 120...