I was going rpm alone for simplicity. Lol, I'll bet you're right, it will be harder than I think.

I see, at which point you'd have to fully understand the working and interrelationship of the IP adjustments to lean it at idle only. I don't believe I've met anyone that knows that, let alone myself. I'm guessing it involves the course idle adjustment or torque control, both of which no one advises you touch.

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I suggest we solve high gas prices with environmentalists... unfortunately they don't burn well.
1982 300CD, 220K miles: This vacuum system will be the death of me yet! (OBK #26)
1977 F150 400 C6 2wd, 10.2 sec 1/8 mile with 2.75 gears.
1965 Mustang. Mostly stock... LOL!
2001 Ram 2500, cummins, 5spd, 202k miles.(girlfriends)