Os glow plugs are always great.

Traxxas or o'donnel fuel, both i use and both are good.Some say the traxxas is a lil less consistant, and makes it harder to tune, i think its fine.O'Donnel is supposedly easier to tune and holds a tune better, i think they are close, maybe just the engine i was using or something.Jac race fuel ive used, that was decent too. And ive used byrons as well.As you see, i try about everything to get the best out of my engine.

Byrons or traxxas, one of those.Ran the best for me.And os plugs, #8 long, medium is usually the most common.Depends on the temp though, colder outside, you want a hotter plug.Hotter out, you want a colder plug.
Oh, and welcome to RCU.