I posted this in the engine/drivetrain section with no luck so here it is . I have a 2014 800s I only have a dalton clutch kit for mods. I mostly run trails a couple of short course races a year and silver lake once a year. I’m really considering a bbk just not sure on which one. I’m looking at the muzzy’s 850, the bikeman 800, the dragon fire 857 I know I’m not going to beat 900xp’s I just want to be somewhat competitive. I’m looking for the biggest bang for the buck and if I should run any other mods with a big bore, fuel controller, exhaust , ect. Also thinking about a port and polish job on the head, has anyone noticed a difference with head work or is it not worth it. Any info will help thanks