well what do you REALLY do here?

Bump the maf around a little, bump the timing around a little, change the shift points and line pressure.

Not exactly $500 worth of work.

Tunes don't really do much with a 3800.

Its not like you can add 10* of timing and pickup power, or lean it out a point or two and pickup power, or increase boost targets and pickup power.

Its just not in the cards.