Hello all. I just bought a 2011 350 SXF. It only has 10 hours total and not even 3 on a new ktm hard parts (vertex) high compression piston. The piston was put in when it was at the shop for the crank bearing recall. The bike has a full FMF 4.1 titanium exhaust. The question is what gas to run. I had a kx450 back in 07-08 with a high compression piston and I ran straight 91 pump gas in it. Here in CA all the stations I've found have ethanol in their 91. The guy I bought it from runs 50/50 VP race fuel and 91 pump gas in all his bikes and highly recommends it. I just want to know your guys thoughts and experiences. If I should consisder mixing race fuel, which one should I use considering VP has like 6-8 different fuels made specifically for dirt bikes. I meant to ask him which one he was running but forgot and haven't been able to get ahold of him today to ask. Thanks for your input!!