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a body big block chasis setup, 2 batterys in trunk ,spring relocation kit 12.5mt drag radials, dana 60 rear.now i think you would get more wheelspin with heavier car because ur trying to move more weight.

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The lighter the car, the higher in the powerband
you would want your torque peak. You would get more wheelspin out of a heavier car when it's springs flex under power. The right gear/tire/chassis combo would cause a heavier car to "hook" well under full power. In your case with the A-body, you also have enough footprint (tire width) as well as tire circumference (in accordance with your present gear ratio) to "hook".