Hey guys! My gx200 has been stalling like crazy! at the worst times too:censure:. It just sputters and dies and wont start up for another 5 minutes. the process just keeps repeating. I have 1.3 rockers, 18lb springs, .50 duration cam, custom adjustable jet, +6 degrees timing, tav2. I run a little bit of octane booster too. Anyone got any ideaas???!!!:shrug: