I have a cool head with 19cc domes, 2 to 1 pipe, air filter, boost bottle, stock carbs, who knows how its jetted...i bought it this way like a week ago and I'm getting all the bugs out of it. But I was talking to a atv mechanic and he said if I have 19cc domes I should be running nothing but race gas even if I mix it 50/50 or I'm gonna blow the thing up? True? He referred me to a shope that they compete with that actually sells race gas so it wasnt him just trying to sell something. What do you guys think?