Well i havent driven my car in about 2 months since my clutch broke again...
since than i have about a half a tank of c16 and its still in there...
i start my car and let it run for a few minutes about every other day....

Is leaving the race gas there for so long going to do harm in any way to my car??

 

No, but idling it like that will foul your plugs.

 

when are you doing the new clutch ?