When i let off of the gas my RPM's go from where ever they are when i let off and drop down to less than 100 RPM's....i mean it stops on the peg!!!!!!!!....What the hell is wrong? I put all new gaskets in on my intake, T.B., etc....but it's been doing that since i got that stuff put on...I blew my dounut gasket the other day and it got worse,,, i fixed the gasket but it's still doing that....and when i'm sitting at a stop light or somethng it idles around 100 or 200 then it jumps up to around 400 or 500 then drops back down for a min and then goes back up....

?????????????????????????????????????????????????? ?????????????????????????????????WTF,WTF,WTF????

 

have you tried setting your base idle?
car on, disconnect the iacv, adjust idle to 450/500.shut car off, plug iacv back and done
you can also check your iacv to see if the screen is clogged

 

Have you done this before??? How exactly does this work??? I have faith in you but....you know...lol