I put in a 75MM BBk TB on my '02 GT. I already had a C&L plenum and everything ran great with the stock TB. The install of the BBK went easy and the car definately pulls a little more above 2500RPM but my idle is a little high now. I set the set screw according to the directions and it idled at about 1100RPM.. (with the stocker it idled around 700RPM).. I backed off on the set screw until it wasn't even touching the linkage and it only goes as low as 900 RPM.. It looks like the TPS in these aren't adjustable, any ideas why nad how to fix?