I just installed the predator tune and advanced the timing. Since then my car runs like total crap when I first start her up. Doesnt matter if its cold or hot outside. It has alot of hesitation when I try to take off in the lower rpm's. It's to the point where I have to rev it up to over 2500 rpm's to get going from a dead stop or it will spit and sputter. Could I have the timing advanced too far? Would that cause hesitation? Help me out please.....