5.3 let me down..or maybe it was the tuner

[farmtruc]

We sure can, just follow some of those things posted up there, and get some scans coming, i'd like to see what the idc is.

[chvy=power]

thats just a rule of thumb ive been taught that you have most vaccum at idle and little to none a WOT...with it running that lean i'm kind of scared to really push it toooo hard. ill hook my lil scan tool up to it and get a map and maf reading. i should take the readings at WOT right?

[chvy=power]

at idle MAP- 15.1 "hg MAF- 1.13 lb/m at WOT MAP- 28.6-28.9 "hg MAF- 25-30.9 lb/m