I run that motor on every track, high bite or not. I was using a modded out 28 but the Plat 21 has a smoother power delivery and just as much balls as the high dollar ones I was running, and it sips fuel compared to the 28. I just change the pipe from a 007 to 053, to 068 depending on where I want the power. I havent ran a foam/clay/sidedam track but I dont feel I would lack for power, if I did I would go with the Plat 28, bought one last year and ran it once, it was too much.