Thanks forcefed3.8, I think I will wait unitl I find an LLY or LBZ. Seems some guys get lucky with the LB7 and others have failures with less than 50,000 miles.I had to do injectors on my 03 at 50,000 miles, a friend of mine had to do them at 43,000 miles. We both changed fuel filters with the GM filters every 3 to 5000 miles because we noticed the rail pressure dropping on high hp tunes when the filters started to get dirty. I had an 01 with 81,000 miles on it when I traded it in, original injectors, and my dad had an 02 with 75,000 miles on it, original injectors, and he changed the filter twice.