Quote:
As we say in ny "not for nothing" but are the front wheels on the ground at the 60? We had that problem. 
At that ET, crossing the 60 foot markers with the back tires is about 10-12 hundreds. I have done it enough and compared time slips after a good amount of runs. Car has to be a good bit up in the air that far out for the timers to see the rear tires first.
It's extremely unlikely that is going on with the OP's car.
To the OP the cam specs( lsa, where installed, duration,etc, etc) are important items we need to help you.
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, low 10.30’s 1/4
1.41 best 60 foot
6.56 at 104.17
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