I would think that the age of the car would matter less in the longer races (provided that it is prepped well), and that the older heavier car would be more of a disadvantage in the shorter races. You guys might be in trouble if "Pinky" ever goes full-time.
Look for Pinkie to prove her worth in Baja soon. New is cool I'm just saying that you can be in the game without spending all the cash on the new expensive stuff.
Personally I think the best races for Pinkie would be either the 500 or 1000, we just haven't put the car in the 1000 yet and we had a first time driver do the second half of the only 500 she raced. If I wasn't racing the TT we would race her in all of them and then people would understand how good an old car can be.