I want to upgrade my 99 cbrf4 so it can outrun 750's. In what order should I do what.

What kind of 750's? I can run with my friends ZX7 but I can't touch my other friends GSXR 750. I'm dropping a tooth on the front sprocket i'll let ya know if this helps. As far as making your bike run better, I would get a slip on, K&N, get it jetted for both these items, try to lighten your bike up a bit.

If you really want to keep up and or beat most 750's, up 1-2 teeth in back and down 1 tooth in front, also need exhaust and jet kit, see my mods.