a few near term upgrade suggestions
- Inner cam bearing. Torrington bearing is what most use. typically come with cam install kit offered by many like S&S
- Lifters. known issue and can cause severe engine damage when they fail. While many have got 20K miles or so, I wouldn't wait for a failure. Suggest S&S lifters
- With lifters and cam bearing out, suggest a same swap. Research and select base on your build
- Suggest stage 1 air cleaner, cat-less exhaust header and new mufflers. Lots of choices. If you like stock look and want to keep cost down, have a look at Fulsac offering. Fulsac header uses stock heat shield and cores for stock mufflers inexpensive. They also offer the TTS with the decent canned map for you application. Fuel Moto also has similar head pipe and lots of muffler options
- if you're going to think about replacing the valve guides, consider doing a little bit of headwork, including shaving the heads to increase compression. This plays into your cam choice. If you're looking for something mild, then 10:1 compression with S&S 570 cam is a good choice.
- you'll need a ECM tuning device such as TTS, Power Comander, SEPST. All good options and would suggest going with the one your local tuner prefers or the tuner you plan on using (dyno tune is always better than a canned map)
- at some point you will probably need to replace the compensator. Several updates to the compensator since 2007. If you do replace, suggest putting the heavier clutch spring while in there (only about $25)