RE: what brand nitro fuel?
Look good example. I am a basher first of all. When I had my 3.3 in my Jato I was using Traxxas fuel 33%. It has a high oil content. My engine used to run mega hot even in a rich setting. If I leaned just a bit smoke would steam up from the head. I started using Maxys 30% which has a lower oil content and my 3.3 had a lot more power and ran a lot cooler on a rich setting than with the Traxxas fuel. Also I am able to lean my engine out a bit for all out speed and still not over heat. This isn't to promote the fuel I use but to show you that a fuel with 8% to 12% oil content is ideal for racers and bashers alike and improves engine life.