I had the car down at a performance shop and they managed to tune the vehicle and install a few things, however it starts and turns off alot. im running a t56 magnum transmission, new 750cc battery(covered under warranty), holly efi and pioneer nav unit in the car, rockford fosgate as the sound system in the car, Thompson motor sport head and cam package, custom exhaust, gm performance ls intake manifold and 102mm throttle body on the ls3. Is vats the problem here?
