Fooling around with a calculator and dream wheel. Looks like about 52% on the nose. That's OK.

Dream wheel and calculators say 675 HP @ 3350 is 9.80 potential in the 1/4 or 6.20 in the 1/8. It's mostly all in the 60'. Car should be mid to high 1.30s at that power to weight. Is it a 3 speed? Good converter with the right stall?

Freeing up the front end was a good move. If it wants to rotate and can't, it will be a turd. The amount of lift can be controlled with an adjustable limiter and/or a good shock. 130 springs is borderline but might be OK at that rear axle weight but you'll have to control the hit with the shock once the car leaves like it should. Pay attention to the separation and that it's not crushing the tire at the hit.


If the results don't match the theory, change the theory.