Thanks a bunch guys.

You've confirmed the suspician that the carb is just too large.

I've got a couple carbs here. 24/64, 26/64 and 28/64. I'll put a stock Walbro 24/64 on it and try again.

Your saying that I'm over propped. I thought these engines were supposed to turn an 18-6? 16-10 is the same load as an 18-6.

Either way, I'll step down to a 16-8 for now and just see if I can get it running.

Thanks very much for the help.