This is just a "WILD" guess but it sounds like you blew the rear end. Does it wine or make any odd noises when you accelerate or only when there is a decrease in speed ? Have you been 'Breaking the tires loose' latley / during the start of a race?
Sounds like the ring and pinion need to be looked at.
Quote:
I thoguht my car's throttle response was amazing before, now it's INSAIN!
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