Ok so the other night i was out drivin around and racing some cars with the nitrous(im back at a 100 shot), (beet an 04 mustang gt and an lt1 camaro)but the last time i hit it it down shifted into first and usually it will spin when it does but the motor just revved up really quick to 6200 rpm hitting the rev limiter and i first let out thinking it was spinning (but it didnt spin the tires) and then nail it again and it spins a bit and hooks up. well now when im just driving it normally, just for say i can have it in second gear just being easy on the gas and then go to about 1/2 to 3/4 throttle and it will rev up another 1000 to 1500 rpm over wheres its already at and then it will catch and go? any one have any ideas?