I just installed a new motor in my camaro, just a 347 with a small cam. The other day we dynoed tuned it. It did great except for running out of injector. But right as I pulled it off the dyno I quit idling properly. I replaced the iac thinking it could've went bad but that didn’t help it any. It will idle for about 2 minute if I reset the battery but then it goes back to the same deal. Right now I have the iac unplugged allowing it to idle but it’s at 1800 rpm idling. I am using hptuners but I am new to it.