I am in the planning stage right now. Looking to order within the next 6-12 months. Considering spending the 2k for a brand new LNF long block. Couple questions. First, Is the body harness and everything else the same on the NA and TC cars? Or do i ablsolutely have to have a TC SS donor? Second, Anybody tried going like 400 whp?? Wondering about traction issues etc.