dustin also said to check the bypass valve, does anyone have any experience?

has anyone ever had a bypass valve go bad?

jpzaluski, i think you might be on to something here, it definitely starts happening when i comes from neg to pos, maybe the bypass valve........

Re-check base timing. Improper timing will cause surging.

I'm not well versed in how the bypass valve is plumbed on the Whipples, however if it bypasses to atmosphere, or even before the throttle body you now have a source. It's allowing boost out under positive pressure, but as soon as the motor returns to vacuum you are allowing in unmetered air, thus the higher idle.

well i switched bypass valves and still no luck, for the hell of it i got a new iac valve, is it possible this is an IAC problem? i traced the wires back to the computer and it look like one of the plugs might have been hot (looks brown colored around the wires). oh and i just ordered a rinda scan tool, so hopefully i get this mess worked out very soon........ted

Yes for sure could be a iac problem that is its job is to stabilize idle under different loads.Ohm out them wires make sure all are ok. Keep head up u will get it. Scan tool will be the key!!!

Good luck Skydog

thanks skydog, i sure hope soo, this thing is driving me nuts!!!!

Man buddy been there more times than I care to say....aaaahhhhh sucks I can not even sleep it kills me and I am mean to every one hahahaha
And yes u will get it!!!!!

hahaha funny you should say that, my wife said she is going to kill me if i dont get if fixed! (think ive been kinda short with her).........