I think it my be winter fuel ? ran a 12.7 at 106.2 and last year was a 12.6 107.5 mph ? or it my be I removed the ppe boost valve,the boost was off by 4 or 5 lbs,I put it back in and my go back and see what it runs :D

Maybe its the 335,000 miles!! J/K !!

Those are great times. :cool: Winter fuel does suck. I can feel the difference when i get good fuel vs. bad fuel/winter blend.