2016 fatboy with tc103b motor. what are the factory camshaft specs? what is involved with getting this thing retuned if i put in a gear drive system? such as this one...................https://www.sscycle.com/products/gea...-06-dyna-510g/. i can do the wrenchwork myself...........but i have no clue on tuning or even what program id need to tune....if it would even need retuned.

 

Stock lift is roughly 484 and duration in the 220 range. You will have to tune the bike with any cam change. No way around it. Even with a mild cam change the bike will run pretty crappy without a tune. It is not recommended to run gear drive cams on a 103 as the crank run out is usually too great. You could check the run out to be sure but I would just forget it and go with the chain drive cams. The later cam chain tensioners are not as problematic as the earlier ones. Just pull the cam cover and check them occasionally.