who runs 13sec to 12.80 in the 1/4

I have a 76 dart swinger, it weighs 3550 with me in it. I run 13.08@103mph.
360 30 over
308 heads
crower 0.485/0.495 222/234
Kb 190
air gap
3310 750 holley
Msd ignition
904 2600-3200 coan
8 3/4 3.91 gears