IAC increases in drive causing very fast idle

[Motors]

Ive got an 86 Monte with an 86 Camaro TPI setup. I'm trying to figure out why the IAC goes from 60 counts at idle resulting in an idle rpm of about 800 to 160 counts when drive is selected. With the brakes held of course the idle remains 900 rpm but if I let it role the idle will go up to 1250 rpm and about 25MPH. The engine is in closed loop, operating temp. The idle speed table vs temp is a little high on the idle, 750 at 68C, but the high idle problem doesn't occur unless park/reverse is selected.

Any ideas out there would be appreciated.

Thanks!!!!

Ok so it's the 10k resistor causing some of my idle problems.... the problem however is that I loose the data steam on tunerpro as soon as I remove the resistor. Does anybody know of a reliable way to log without the 10k in place?