after i fixed the idle air control my car runs great but when i start it up the idle tends to be a little rough and loping any ideas on what could be causing it im leaning towards vacuum problem but i will have to double check cause i thought that i had replaced all the vacuum lines already, and i hope its not a worn lobe on the camshaft.

Worn lobe it would be lumpy all the time. I would check you Fuel Pressure also look into changing your fuel filter. Have you changed your plugs and wires recently? Also I would test your coils. Here'* the link to do that. https://www.gmforum.com/trouble-shooting-test-procedures-141/testing-coils-spark-plug-wires-278818/

I had a similiar problem with my '94 bonneville se, 3800 series 1. Idle would be about 500rpm and the car would surge alittle but clear up once i stepped on the gas. Mine turned out to be the EGR valve, once I replaced that she smoothed right out. For me about $65.00 new and about 20 minutes of wrench time.

One area I found that will give you a lopy idle is a cracked EGR tube. The only way to check this is to remove it, hold it up to the light and look for a crack.

wow thanks for all the suggestions and yes night i have checked all those and thanks for the info about the lobe, looks like the EGR valve is next to be checked

Did you do an idle relearn when you finished installing the new IAC?

what do u mean by idle relearn i dont speak greek lol probably not i was in a hurry putting it on because i had to go to work that night and only have the one car. also does my 92 bonnie even have an egr valve