Thanks Hobbsy. I have been able to set up Saito's from .56's to 1.80's with no problems. My 180's have always idle like a Harley. I just never had one backfire like this.

I find this engine just a little intimidating with so much power and that backfire. I'll start over like it's new and track the top end in starting from 5 turns out. I should have left the glow igniter on till I had it dialed in on the top end I guess.