What type of fuel would you recommend with that engine. I am not sure what types of fuel my LHS carries because I only ran top fuel before and just grabbed that stuff without looking at anything else.

Also what gearing would you recommend. Right now I am running sport trax tires with rpm rims. I am going to get velocity wheels in the future, but still run the sport trax tires. The truck weighs in the high 7's low 8's.