The unfortunate thing about all the old drag tests is that most if not all were before 60' times were available. In the MCR issue where we tested my COPO Nova, we could'nt get better than a 13.5 et., with a 2.3 60'. The time I got 13.22 we managed a low 2.1 60. One time at the Supercar Showdown it's was'nt till the last round we finally got the car to go 13.99. Different days and different tracks make for big differences. Alltitue is also a big factor. So there you have the same car, same driver, and same state of tune on three different ocations going very high 13's, mid 13's and a low 13. If some of these old tests showed a 2.3 short time and ran low 13's, on a different track or someone that could launch the car to a 1.9 short time, than you would have a easy 12 second run. Just my observation.
Peter