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Frankly, I’d be surprised if it actually ran mid-12’s as it sits.
Street oriented stick cars with street friendly gears are “usually” a disappointment at the track.

If you try not to leave too hard so it doesn’t spin, it bogs.
If you leave high enough to get around the bog, it spins.
If you leave high enough and it doesn’t bog or spin, it often breaks.

If the motor has a cam that’s in the mid-240’s or bigger, it would want to be geared so it was turning close to 7k through the lights(if you were trying to optimize it for best ET’s).