Mine isn’t as fast as what you’re looking for, but I’ll bite. Mine went 12.57 @ 113 last weekend, with a soft 1.79 60 ft and sloooow shifts. It took 9 passes, but thats the first complete pass the car has run. From here I can try to launch it harder and shift it faster.

Do you guys find shifting slow affects trap speed or et more?

Combo is stock stroke 440, Racer Brown ST-21 (254 @ .050, 520 lift), 107 LSA, RPM intake with an 850 DP, Stealth heads, 18 spline with a Ram Powergrip HD, and 4.10 8 3/4 (reason for babying the launch and shifts).

The last 3 passes the clutch seemed to slip in first, I pedaled it some and it locked up and held for the rest of the run. But I was actually thinking about throwing a 727 in it to see what it runs with it whistling

Last edited by GTX MATT; 11/02/22 08:23 PM.
Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street