We never put a ton of runs on the car. 100-150/year. System 1 filter got looked at and the car got cleaned and looked at every week, regardless the run count. Plugs, valves, carb, etc., were taken care of regularly. Any abnormal issues that popped up were put on the list of things to keep a closer eye on every week.

It came completely apart every winter. Engine, trans, fuel system, suspension, brakes, everything, and was checked/freshened as needed. Engine got rings, bearings, heads looked at, everything cleaned and inspected. Trans got resealed and anything funky replaced. Ignition parts were changed out, I started the year with everything fresh and didn't run it until it was about to fall apart. If the trans had to come apart mid year to look at to get it to the end of the year in good shape, we did it. We had very few problems with anything failing at the track and were able to work on making the car better from race to race as a result.