I'm going down there (to the shop) o unhook the secondaries, today, and jet it a little leaner (10.5:1 is too fat, I think) and make a test run with it like that.
I'll let y'all know what I find out. The waste gate is set at 8 pounds of boost, right now. I figured there was just no reason to set it higher if all it was going to do was mis-fire...:oops: