Hey guys, i'm new to Banshee HQ and to Banshees altogether. Just traded a z400 for a 98 shee. The bike blew up about a month ago and I have already torn the engine apart. The rod bearing came apart on the right side of the motor, the cylinder is scarred up pretty good, and the head is trashed. I ride mostly wide/open trails, and enjoy to race. Should i take my stock jugs, get a bore and port job, a cool head, and a +4mm crank? Or, should I just go ahead and get a 421 cub kit? I heard Serval has a cub kit that isn't as snappy of a powerband? Any suggestions?