When taking off from a dead stop, idle is at 950, the engine hesitates or stutters just a tiny bit between1500 and 2000 RPM. I have a VBAK with V& H longshots and ais block off. When I take off at a quick pace the problem is non existent. I know, always rip it. Well traffic here in Houston is a bi%^h sometimes and this is driving me crazy. I have tried every map file known without any success (currently running desert warrior) and I have checked plugs/wires/hoses and searched the site for the same issue.. no joy. Any suggestions?.