mike c.

iTrader: (1)

i just finished my AFR 205's and g5x3 combo. i also added the nos timing tuner box from ramchargers. my car has not been retuned yet for the new set up(i had the x2 cam with another set of ported heads before)my car runs and idles great but when i smash the gas after the 4,000rpm mark it starts spitting and jerking all the way to the 6,800 rpm redline. at one point it also killed my pseedo where i had to turn off the car and restart it for the speedo to work again. my car has near 100mi since the swap and i am NOT throwing any check codes. is this a tuning issue or is the retard box causing this problem? thanks for any help, mike c.

mike c.

iTrader: (1)

i found the problem. i took off the timing box and all works great now.