Hi guys, have a twin Turbo LBZ with Race tune. , It ussually runs great. All of a sudden it will only give half throttle at times. I can give 100% throttle and it barely smokes and does not go, if I let off and try again she rips. If I hold throttle down it does its half fuel thing then all of a sudden it usually will take off. Then next time it runs great. I can tell it is giving a lot less fuel when its doing it. Looked for loose connectors, anything else?