Ok so I am just finishing up a new build for my 2000 400ex. It is set up for tt racing so will be ran hard. The build is a 416 bore with a Wiseco 11:1 piston. Stage 3 Hotcam. Ported head, KnN air filter. AMR racing Stage 3 CDI and ignition coil, and a full Empire industries exhaust. My question is, what fuel should I run with this build during break in and on the track?