Tonight I had the bike out for a spin and did 110 on a long straight section in 3rd gear. I'm running a 22 tooth front and when I shifted to 4th I expected to accelerate just a bit but she wouldn't hold it and slowed to 105 at around 5300 rpm. I have a combat head and a web cam 312a with radiused lifters. The cam is advanced 5 degrees which made a good bit of difference. I probably shouldn't expect any different with this rather mild set up. Cruise at 70 mph is just over 3500 rpm which is nice. I really like the low rpm cruise and it pulls nicely from a bit under 3000. Any thoughts on how to get a few more suds?