Congrats on getting into the 12's. Wow, I'm jealous of your tracks elevation. You and bikecop will have awesome runs once your weather is perfect. It's getting warm here already. My car is back to normal, and ran a 12.54 today. It was 73 degrees and my elevation is 1240 feet. That would have been a low 12.3 or better at your track. My track however had great track prep today. I just wish it was 20 degrees colder and I could have really put down the numbers. Six runs were 12.969,12.548,12.621,12.671,12.762, 12.804. It was getting colder towards the last runs but the car wasn't getting any cooler. I should dry ice the sc in between runs, but don't want to risk dripping on the track and getting kicked off. Dang new 08' vette (not a zo6) was running 12.23 all night on street tires. I ran him and he still caught me on the top end. Old guy said it was completely stock. No exhaust or anything the eye could see. Seen a few, and never seen one be that fast and consistent. My best 60' of the day was 1.864.
Here's my breakdown of the run
reaction .079
60'------1.884
1/8------8.105
1/8 mph--86.825
1/4------12.548
1/4 mph--111.892