Broke the duster last night.... I guess I should have listened to everone in the whole world that standard B1 Rocker gear has issues no matter what you do..... 10 mile drive last night, 2400rpm most of the way, busted an adjuster off, chewed up a rocker arm, not sure about the push rod. Now I get to figure out how to clean up all the aluminum chunks and find the adjuster that broke off......