Idle issues after install...

So I just installed my 76mm C&L, and my 70mm BBK tb. I am now having a bit of an idling issue. It seems when I rev it at all, it doesnt come right back to idle like it should. Lingers around 1500-1750ish for a few seconds, then drops down to normal. Is this typical? The only other upgrade thats been done (that im aware of) is the red top injectors. Do I just need a tune? Or perhaps I need to replace my TPS and/or AIC?

You sure the gasket is tight and its not pulling in air from anywhere?

Red injectors are stock for an 89-93 SC. WHat sample tube did you get for your MAF...and lastly...The TB may have to be adjusted

IAC is probably open to much. if you search there are steps on how to set it up properly