Who races a 2bbl carb?

I run a 600 double pumper Holley on my Duster with a 360 that runs about 8.10 @ 84 mph in the 1/8 mile. My 60' times are about 1.72. At the track where I race on most Friday nights, my car will spin on the starting line. Most of the time I will disconnect my secondaries and run on the front 2 barrells only. It will slow my Duster down to about 8.50 @ 80 mph and my 60' will slow down to about 1.79, allowing my car to hook instead of spin. I still stall it and shift it at the same rpms [2400-5600] as when I run it with the secondaries connected. It may be a bit more consistent with the 2 barrells only.