Hi, I own a 06 SE Fatboy It has had some mods done at local dealer before i bought it a year ago. some of what I know stage 1 kit CNC heads throtle body mod. etc my problem with it is on last trip out I noticed some valve train noise,then a severe rattle. I'm an auto tec. for over 30 yrs,and it sounds like a rocker arm problem. Geting ready to tear in to it to find out. any sugestions?