Taking off from Iowa Aug. 25 for Colo. Two '09 Tw's a '04 KLX 300 and of coarse a 650 KLR! Told my KLR buddy he may become bored in a hurry! Anyway will the TW's run well enough at high elevations to leave them alone? Anyone ever install a Holtzman dial a jet or ATACC? Flatlanders like me have used them on our sleds (2 smokes) for years.