I have an Early 99 7.3 and I have injector failure at 347,000mi. I was looking to get some Full force Stage 1 Reman injectors. I currently have a TS 6 position chip and I dont know what tunes for sure are on it. What I do know is that 1 is stock, 2 raises idle, 3-5 get progressively more power. 6 smokes like crazy but not as fast as 5. I have a couple questions. Would these be some good injectors to get for my truck and what kind of tuning could I get ( like power levels) and what would the tuning costs be from PHP?