98 sd tune problems (????)

[rubbersidedown]

tune w/ MAF works good, go through auto VE tutorial and try to tune car... as soon as I unplug MAF, A/F slowly goes lean (up to 20+:1 @ idle and part throttle) I am basing my maps off the back-up VE table for correction and they are pretty close when MAF is plugged in. try to richen it up on back-up VE (and main VE once just for trials) by as much as 40% (showing idle values in the 80s) and it still goes lean. This is an N/A deal and we are pegging the MAF (11250 limits) @ about 5300-5600. Therefore we need to do a S/D tune. I have went through the auto tutorial twice and set up two different tunes (in case i fudged something the first time) with the same results. I have had very good results with similar set-ups in the past, not sure why this one is fighting so hard... Any ideas?
thanks

[hquick]

I believe you have to make backup and main VE table the same?

[rubbersidedown]

that may explain it although the tables are labled differently (map axis') can anyone else confirm this (i sure don't remember reading that, although that doesn't mean anything!)
thanks

[roy]

Yes the tables are different, the backup table has less resolution to work with.
Would you mind posting your tun.

[rubbersidedown]

here ya go... let me know what your thoughts are... thanks