I'm in the same boat. Need a carb for a TH .75 and have been waiting over 6 months. Starting to get pissed-off about it. I finally ordered an SK .90 carb for it.

I also need some parts for an AquaCraft .46 airboat motor. I'm using it on an airplane. It's made by Hobbico, same as the Tower motors. I think it's the same as a TH .46, but not for sure. Anyway, I can't get parts for it. I haven't been able to get parts for it in over 6 months and now they are slowly starting to list those parts as "Discontinued" Thats REALLY making me mad. If I want parts for this AquaCraft .46, I'll have to take the risk and buy TH .46 parts hoping they are the same engine. [:@]