Yeah im using A747 (fecking expensive) but oh that smell is worth it LOL, do you chaps think 40:1 is to high? Im assuming that a tunner would make sure it was set to the right ratio? when jetting and running it up on the dyno!

im running a stock filter with a modded air box. HRC jet kit etc. she made 62 hp on the dyno and the plugs looked good, that aside it still went pop LOL but i think thats gona be for ring/powervalve issue not a mixture issue.!!