There's definitely more in it. Kept spinning as you can hear....brought fronts down 30, but left the rears alone. Looking back, I should've brought both down..with the fronts even more.
To put things in perspective, last year, Oct. 31st, I ran 13.089@104.43 on a 1.872 60' with the same tune, a few gallons of GT260 for protection against knock and a K&N panel filter in -658 DA on Primacy MXM4's.
This time around, added the intake, exhaust, ethanol blend and a bit of race gas in 381 DA...also running Pilot Sport AS/3's which are amazing in general and fresh set of plugs @.030.