Trinity fuel is very good. Try 30% instead of 20%. You get 12% oil blend which will give you some extra protection. I beleive the other fuel is 8% oil which is more of a true racer blend. If you go this route you may want to try White Lightning. I use it for my buggy and it does great for racing. I actually run it a little rich and still has power with 30% nitro.
Rockman