I have them out 2 turns per the "kit" instructions (I think that is what it said). I'll give it a try. So is 40% blockage a decent or standard amount of "blocking"?
I'm guessing that your foam for 40% blockage is around 1-3/4" long, I believe that is what SISF recommends as a starting point and for some it works just fine.
If you have another piece of foam you could try cutting it 1/8" smaller than your current size and see how that works but I would only make one of the adjustments at a time so you can see how each difference affects your bike.
Right now I'm running at 36% to 37% blockage and the bike is running great, but I've got SISF's power cams and very different jetting than his standard 2mm jet kit.
