Please tell me what I should change...

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Here's what I am seeing from a scan..

Short Term FT = -7 to +14
Long Term FT = .8 to 10

Manifold Pressure = 3.2 to 10.4 (7.2 - 7.5 average)

Knock Retard gets up to 7 when accelerating at 1400 RPMs 20 - 30% throttle

[jimmyblue]

Why don't you tell us first, what about the car might be
offsetting your mixture 10% lean? What about it is non
stock?

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Pace 85mm LS1 Calibrated MAF.

Here's everything...

Volant Intake (fed by direct flow ramair from a modified SLP Ram Air H.O. hood)
Pace 85mm LS1 Calibrated MAF
stock TB, stock intake manifold, stock internals
QTP headers
True duals with 2.5" high flow cats & bullet mufflers.

[jimmyblue]

OK. First thing I would do is, desolder the resistor
("calibration" is a pretty fancy word for tacking on
a 10-cent best-guess component) and use an 85mm
truck MAF table, cut-n-pasted into your tune.

I sent an Excel table with several, up to Horist's
repository site though I don't know if he's gotten
them online yet.

Then see where things settle out, with that one bit
more properly represented. Don't want to change
too much at once.

If you can see the original Delphi P/N on that Pace
MAF that would help pick table but they all are
pretty close to begin with, within the 85mm family.

[[email protected]]

If you can see the original Delphi P/N on that Pace
MAF that would help pick table but they all are
pretty close to begin with, within the 85mm family.

I'll get that tonight and post it here.