I have been pulling the trigger in this engine for almost a gallon, weird thing is that the engine is taking a long time to break in, even now it locks up frequently. during tuning, idle wasn't consistant but the upside is that I see that there is untapped power still in it. only problem is to get past the tricky tuning and getting it right. So far I am pleased with it inspite of the difficulties tuning. Gonna keep tuning it till I get it right and take it for the race this month to see how it holds up. Keep you guys posted.