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Discussion Starter · #1 ·
1990 TBI 360.
Hey guys. So I just replaced my IAC motor and tried to set it by ear.
However right at startup it idles kinda high for a brief moment  then calms down to what I think is normal.
As soon as I turn the engine off I see the AIC motor bolt fully extend and stop.
I would like to install a tachometer to be able to get a more accurate rpm at idle.
However I have read through some previous threads but not exactly positive which leads at the coil to tap into and where do you run the ground wire?

Thanks for any input as usual.
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