I've had this bike since 1973. In that time I've made the following changes:
I had the Valve Cover Chrome Plated (Required Engine Removal)
Installed Pull-Back Handlebars
Installed Crossover TT Pipes
Installed Kickstand Stop Bar To Set Kickstand Height
Painted Tank, Front Fender, And Side Covers With Silver-Mist Pearl Paint
Installed Oil Cooler
Installed K&N Air Filters
Re-Jetted The Carburetors With The Largest Jets
Raised The Carb Jet Needles To The Highest Position
Installed Oil Pressure Gage
Installed Electronic Ignition
Replaced Front Forks With (Forks By Frank) 2 1/2 Inches Longer
Installed Racing Clutch Springs
Laced A 5:10X16 Inch Harley Rim And Spokes To The Rear Hub
Installed Progressive Suspension Rear Shocks
Installed Shinko 10 SR712R 131X90X16" Harley Tire On The Rear Wheel
Installed A Shinko 10 SR712F 100X90X19" Tire On The Front Wheel
Welded A Larger, Thicker Plate On The Kickstand
Installed An O-Ring Chain
Installed LED Headlight, Signal Lights, And Taillight
I designed the Sissy Bar and carrying bag, and my father made it from Naugahyde on his upholstery sewing machine.
Cheers, Frank