Not tryin to step on anyones toes but every thing ive ever read says regular 103 is 9.6:1 14’ and up ho 103 is 9.7:1 and twin cooled which is 14’ to 16 is advertised 10:1 this photo is from specs on a 2016 street glide 103 ho at 9.7:1 from a harley dealer . Thanks for the help im young an just learning .