I ran the time in the sig when it was 40's low humidity and zero headwind. This time at the track I had the cut-out open and my air filter out. My best was a 13.599@101 with a 2.04 60ft time on my Good Year Eagle F1's that are about gone. This time was with a 10-15mph steady headwind, it was 65 degrees and the humidity was 70-80%. I think if I had the same conditions as my best run I could have seen 13.3's at 105 or so. What do you guys think?

 

I thinks 13.3's are easy for any good running LS1/6spd to hit.
I just went to the track with my LS1/6spd with Nittos and a lid.
First pass was 13.264 at 106 and 2 more 13.1 at 108. I am going to add a cut-out and see if I can get a 13.0/12.9. Ron Boilermaker Fan

 

I think you run what you run, when you run it ... anything else is just ricer exercise ...