I race every week from May to October. Week to week I do nothing. Off season I remove carb and rebuild before season starts. Lean out valve is needed to get some heat in the engine from late September to season done. Normal summer days it is not needed. Vacuum pump not mandatory but it does keep the oil cleaner (water free). Before putting into the trailer I get it as hot as possible 200 degrees.

Not a lot of work to get race fuel for $140 a barrel. I tried e85 and found it much more difficult to tune, and at the time of my switch methanol was cheaper