I dunno if I'd be racing my car if it had so many things that needed to be tended to. Don't get me wrong - I'll take any chance I can to get to the strip, but 1/4 miles are #2 priority for me with fixing broken stuff at #1. Take the test n tune fees and put them towards repairs.
Not much point in racing a wounded horse because all you are going to do is frustrate yourself with poor times. My 2 cents.