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Higher rpm faster sixty , traction dependent .
With 6000 stall I lam leaving @ 4000 at the moment with nearly 3800lbs , have used 4500 . I am bottom bulb racing .
Sixty will be 1.45s give or take . Best of 1.42
With footbrake and a little tighter , 5000 stall , vert i was leaving @ 1350 for 1.49-1.52 sixty best of 1.46 . Leaving just after the 2nd bulb is on .
Car will run about a 1/10 quicker et and a hair more mph off the brake . BUT i have run similar PB et of 10.25s
I race on radial slicks .
So normally quicker sixty = quicker et .
My reactions off the brake are normally a tighter grouping average than footbrake .
We do not get the track time like in USA .

Tex