HD SP, OK you have my attention & I'm listening - first of all I see you are a vendor, who do you represent, a manufacturer or performance shop? I've always read in the past that on a touring bike, its best to have an early opening cam for torque. From the specs I've seen the S&S 538 fits that spec better than the Andrews 48 - do you have experience in these cams on a touring bike? As I've said, I have a 21N in my other RK & really like it for the low end tq but the stock SE253 is also an early opening cam (7*) so I guess that shoots my initial theory. This is frustrating as hell since everybody has their own opinion but few have tried/used diff cams on the same bike & since almost any cam change will give better performance than the stock EPA friendly cams.
thanks