Rejet for race gas?

[Cannonball08]

I just mixed 50/50 93 octane with 110 cam two and now it pops and misses on top. I didn't think you would have to rejet for this. Which way should i go up or down?

[RIDER11X]

Double check me on this cause it's been a while since I ran race gas, But here goes. Octane attracts air in feul, so the more octane - the more air carried in it. Having said this, you should be a bit lean on your mixture. It's also important to keep your blending consistant, or your jetting will change again.

[Scott-300ex]

do you really need to be running this

octane really doesn't give you more power, it just burns more efficiently and prevents detonation

if it was running good before i wouldn't mess with it

plus, if you ever can't run racing fuel then you will have to rejet again, i would think 93 would be the most you would need but whatever

however, i don't think it will give you much if any more power