[79camaro]

You should never have to raise the idle on a tpi or tbi car. The fact that it has a small cam in it tells me that it needs more timing and is possibly loading up with fuel from the timing being too retared. Stock tbi and tpi ecu's only respond to a few different cam grinds without requiring a custom prom. Im 100% sure your problem is timing and your afr is way rich because of it being too retarded.