which gas

[exrider49]

i dont kno which gas i should run... i have a 02 400ex, got hmf slip on wit fmf power bomb header and stage 2 cam and engine bored over and stock compression piston.... i dont kno what fuel to run....i was thinking bout trying vp's u4e or cam2..help me out

[AtvMxRider]

92 octane is all you need anything higher and you are just pissing money away.