Hi Flyer Freq,

It would seem that if the hole is rotated slightly, you could drill it out with no problems, however, if the hole is too far "in" or "out" then moving the hole back or forth would be the best option. The reason for this would be that when the hole is just rotated, the end of the brass insert would be in the center of the carb opening. When the brass insert is too far in or out, then the end of the insert would have to be repositioned to the middle of the carb opening.

I'm not sure if MECOA or GMS is following this thread, nor do I know how to get in touch with them, but they certainly should know - we are putting a lot of work into solving this common problem.

Again, thanks for your input.

Fly4Fun,

Wayne MIller