Originally posted by Ebster1085
I hear ya Mikey, but Joe P's stuff does have a prety good reputation in the DSM community, and the Pro Z was designed around the 16G. Also, the MBC would not be responsible for this idle / coasting issue I'm having. To me that sounds like it must be either a vacuum leak or an IAC issue. I will hook up the boost leak tester again this week when I get a chance and see how it sounds..

The idle coasting issue you need to learn to live with. The stock TB does it as well, only its not as bad because of the size of the TB.

You can try running a stiffer spring, but in the end it is the IAC that does it. The speedo sensor also feeds into the IAC, so if it sees movement, it sends the signal.

Thats what Dino told me when I was complaining of the same thing a year ago.