I really don't care WHAT the RPM is,,, IF you want LOW END Torque, Idle and UP, This is what is needed...
I would think the bike you have will benefit from THIS :
Cams Andrews TW 21's intake close a 30* (good lower end torque cams)
this will give you a little More compression as the intake closes Earlier than the stock cams(34*)
Use adjustable push rods from HD, their SE Slender Tapers work nicely.
Then you need good slip-on exhaust, I like the Less money V&H with a good DEEP rumble sound and excellent flow..
a better AIR flow like HD's SE air unit will do nicely.
Now you need FUEL added to this mix and i suggest a TFI as they are Less $$ and you get a discount as a member Here on HDT when you mention it before you order from Dobecks 877-764-3337. TFI to fit your model and year bike..
You MAY have some of these things already on the bike???
But IF not and No Cams and No Fueler.. Use My suggested way and you will smile..
The SEAT of Your Pants will Move Back Into the SEAT...
ask Any questions if you like..
Try this on for SIZE and see
signed....BUBBIE
My opinion on RPM ,,IF you are running the bike Under 2100 RPM you are LUGGING the motor..