Milt,
I am not a current bike racer, but have many years doing it in the 70's, 80's and early 90's...
That bike as I recall is "stopped up" on the exhaust,,, some things that retain the stock appearance, that may help. would be to "if possible" remove the baffels in each pipe, if not doable,,, punch 6 to 8 1/4" holes in the end caps, and baffle plates,,,, then do the appropriote air filter, air box, carb and jet work...
Please consult with the the current bike on this forum tuners first,, as they may certainly be more up on current tuning...and rules....
My option is old school low buck tuning fix,,,, It does work,,, but I am old and behind the times on this stuff now,,
Charles