Got a new best for this car of 12.47 @ 112 1.86 60' I added some MT DR's and a W/B. What I noticed was I lost 3 mph. Last time out on street tires I was trapping 115. Did I lose MPH because the car wasnt spinning? The W/B also showed my AFR at 10.9 @ WOT. Seems too rich. That was with abot 6 gallons of 91 and 4.5 gallons of 110.