i am doing MAF tuning on my 05 chevy avalanche 5.3l Sloppy Stage 2 cam and gt45 turbo with inner cooler 80lb injectors wideband is running through the AC pressure switch and i keep making changes but the AFR never seems to get where it needs to be I am about to pull my hair out. Any help will be put to good use. driveway maf tuning.hpldriveway maf tuning.hpt