Got everything almost dialed in perfect, running smooth, strong and quiet I ran VP 110 @ 32:1 and the engine was in love. I may half it 110/93 add oil and should be somewhere right at about 100ish octane I think. The straight 110 is nice but not nice enough to run it regularly at 9.89 with tax. So hit pot hole motormount stud broke scorching engine kicks sideways sears my leg with the cooling fins like a flatiron steak. snaps drive sprocket cover. But on the bright side managed not to flat out wreck.