Okay, so I've had this problem since I got the car and finally want to fix it. So it idels at 1000-1100. When I get on it, it hesitates between 3500 and 4500 And then clears up as I keep climbing. I am not sure what is causing it. It has MAFT pro. That's all I have as far as tuning. It is pulling about 10 psi right now. I am not sure if the idle and hesitation are connected but could be. Also I checked the timing and it is dead on. Any info would be great. Thanks guys
