I'm 5' 9" 195#'s. I'm not a big one for modifying the fundementals of a motorcycle. May be lack of experience, but I think a motorcycle should do what you want it to do "off the shelf." Top speed on my savage is about 90 mph. However that top speed comes down fast with any headwind or pulling along side a semi. I"ve tuned the Savage (without changing parts) to run and start fine without backfires - ok afterfires (I have a hard time even coaxing one out when I want too), but I draw the line at putting on a new tank or changing the frame dimensions to make it a touring MC.
With that said, I think the Savage is a great MC for running around town or on secondary roads. I think it's too small, underpowered, gas tank too small etc. for me to run on the interstates for any distance (over an hour). It makes a great beginners MC, and a it's pretty easy to do your own wrenching on.
If you have enough previous riding experience and plan on doing a lot of interstate riding, either plan on modifying the Savage a lot to match your needs, or you may want to look at a MC that matches your needs. Personally, I kept my Savage when I got a ST for longer trips. Triple digits (HP or MPH) is nice to have available, but not necessary all the time.