The fog may be lifting a little, I crawled as far in as I could, the plate says 6V92 and has a couple of letters after it that I can't make out, does that sound about right for my bus? Any info on hp, or what to expect? Has been a great bus so far and hopefully will continue to be.
Probably 6V92TA (Turbo with Aftercooler). Your buddy probably has a 6V92T (no aftercooler). You may also have different transmission and/or rear end that gives you stronger acceleration. For example, from a stop my RTS with 6V92TA with city gears will flat blow away a bus of similar weight and power with highway gears

. However, I have a top end just over 60mph. Once the other bus gets rolling it will overtake and leave me in the dust when it hits 75+.

Yup, thats the Tradeoff, I like the 75 and 10 mpg, better than, more off the line power..

its aslug from a stop but it Go'ss out on the highway..

Paul..