I am 75 with a lot of health issues. I used to race my 67 Barracuda turning low 11's at 120. When i quit racing I took it down to bare metal and made it into a street car with a low compression 410" aluminum W2 driver a few years ago. I used 3.23's and it turns low 12's. I hurt so much when i work on it that it just isn't fun working on it any more. Aging isn't for wimps.