Brad ,
as you know I run a 6000 stall in my Satellite , 4.1 gear & 29"rear tyre on the street and highway . And highway would be interstate so 12 hours or more loaded for racing so well north of 4000 lbs . Never an issue heatwise . Now of corse I finally broke and bought a ute and open trailer as i cant justify the $12/1400.00 fuel bill for interstate racing . Really just buy the stall you want/need , get a decent cooler and get after it

Tex