i start it up and iac is maxed out but then as it warms up iac goes to zero, so i cant adjust anymore so i put it back to where iac is at 40 at hot idle. shoudl i reduce desires air at idle when cold or what?

 

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My engine could never get enough idle air when cold once I installed a big cam, even with the IAC maxed out. I even drilled the TB plate out to 1/4" but didn't want to go any bigger than that becasue the IAC went to zero once warmed up, just like yours. So I just lived with it, but when I installed an aluminum flywheel, the IAC started working right again like it did with the stock cam! Go figure . . .

 

haha thanks man, guess ill just deal with it