I've got a used 09 FXDF I got off an older lad, all it has done that I can see is an unmarked short dual exhaust. I think it has a cam, it makes a ton of top end and definitely doesn't have any easy start. It idles almost normally but is definitely deeper and more rumbly. Any ideas what it might...

Hey guys my brother is having to rebuild and he flat out just don’t have any money. I have lots of parts I have been able to give him and help get this to where it is. I have a S&S TC3 camplate and oil pump With about 10k miles on them both. I do have some witness marks on the back face of the...