I am a newbie to Harleys (or any motorcycle) repair so be gentle with me…. I have a 2003 Ultra that just turned 50K. It has the AN big sucker, TruDuels with rush slip-ons, stage I DL, SE-211 Cams. I ride 2 up (220 # & 150#) Country roads some interstate. I have pulled the jugs off to have them bored to 95 with SE pistons with 10.25:1 compression. The heads are being street ported (all jug and head works thanks to VeeTwinPerformance). I am upgrading the cam plate to the new HD Hybrid Cam Kit as well. I am putting the Progressive Front Fork Replacements and 440s on the rear. I am changing all fluids to AMS oils. I am looking at I have the primary cover off already. The change looks good and tight. Here are the questions: Should replace the clutch or clutch spring or anything else in there before I seal it back? What else should I inspect or change while I have everything apart? Should I get an EFI? I am looking at the PC-V (retro fit) with auto tune (O2 sensors will be installed) Will I still need to get a Dyno if I do?