I can tell you guys that the day I ran the 12:42 against the LS6, we both were young guys and not really able to tell the difference between a well tuned engine or one that was not. The only changes made to the car was a set of headers and a Hurst shifter. The slicks were a set of "hard as a rock" recaps from McCreary and 7 inches wide.
As far as tuning, the best we could think to do was advance the timing so the mark was somewhere under the waterpump. We didn't dare open up the carb, becaues in those days, holley's came with cork gaskets that broke when you looked at them. A tool box full of spare parts was not around in those days. As a matter of fact, tools were not very abundant either. We just happened to be lucky enough to live "back in the day", not very mechanically inclined but had a blast. We trusted the Generals decision to built that type of car so we just drove them. Those certainly were the days!!!!
