Thanks for the update!
Upside of things is that you are still moving forward (+ .200). Every little bit helps!
I am sure a carb rebuild will likely help. Don't know when it was done last. Whom ever you choose to do your carbs; Make sure they know your track configuration, altitude and average temp during your racing season. All that can make a difference. Cut tires are the current fast way to get around on pavement. Get the light weight Bassett wheels if you can afford to.
Check the steel plates on your clutch. Make sure they are within tolerance. Replace the fiber discs. Check the springs. Are they within tolerance? That should help give you some bite in the get up and go.
Keep those bearings spinning freely. A few old threads on bearings and what grease to use. Like everything, lots of different opinions.
Seat time is ALWAYS a plus. Whether it be racing at your local track(s) or racing schools. Always a lot to be learned.
Sorry your season is short. I understand, as I have a daughter up on the peninsula. Our season here in Montana isn't to bad, but not as long as farther south.
Good to hear that you enjoyed your season and will be back next year. Now you get to get real personal with your car and start the teardown and rebuild. Check the chassis, engine, every nut and bolt, radius rods, pan hard bar, wiring, etc., etc., etc... And of course my favorite; New paint! Don't forget me.... I love to see those pics of the new paint schemes !!!
Have a good off season and an even better 2017!
Steve