I'm new to this board and duramax, but turbo LS is my background. Stock 6l bottom end, LS6 cam or LJMS/BTR stage 2 turbo cam, BTR platinum dual springs, pushrods, BWS475 (I'd go 1.10a/r T6 flange) and some 60lb/hr injectors and run it. Oh, transgo kit for the 4l80e and let it eat. Any "pulls" or...