[Sailfish]

D111
I purchased my car new in late August 2007. However, the car was built prior to that (it sat on the dealer floor for a while). My carb. was built around the same time frame as yours.

Some of the "fixes" I tried included changing the secondary spring (installed a weaker spring). I also changed to a larger main jet and a more aggressive secondary cam. In total, all these changes made a big difference, but still didn't completely resolve the issue.

Check with Roush again to validate your carb. is, or is not, one of the affected problem children. I remember they asked me what color paint was on the carb. Turns out they put a drop of paint on the carb. and the color I had was part of a larger group that had known issues ( I don't recall the specific color).

At any rate, the new carb. they supplied was perfect from the get-go. No issues and no problems. Couldn't be happier.