Hi Wayne and Dave!

The Tower .46 Carb, while it looks like it would work, it won't; I've tried it. I don't remember the exact measurements, but the throat is smaller by a few thousandths than the GMS. It sucked air like water through a screen door. I tried to put the GMS carb on the Tower engine also, and it didn't want to go. You can get the individual parts for the GMS though. Here is the link for the carb body and spray bar: http://www2.towerhobbies.com/cgi-bin...?&I=LXEGM2&P=7.

I took the carb back apart, and measured the distance from the shoulder of the spray bar to the edge of the hole. I didn't have anything that would measure that fine, but there was a difference. In fact the bad spray bar was drilled at an angle. The good spray bar was roughly .051 inches. The bad bar is roughly .039 inches on one side, and .035 on the other. These are real rough measurements, as I guessed at the distance between marks on a mm scale, then used a conversion calculator to inches. I put my spray bar in my friends carb. Hopefully I can get a chance to try it.

Wayne, I think you might have looked up someone elses profile by mistake, I am probably 4 to 6 hours south of the Canada/U.S. border, in Appleton, Wisconsin. I wish we were a little closer, as I would love to fly with you some time.