12.70 at 107 mph—that’s what we’re talking about! From just the FTI transmission upgrade and a set of used gears, the Dirty Bird picked up .889 seconds and 7.66 mph. We even saw a substantial gain on the first half of the track, with a .5-second decrease in our eighth-mile time. However, we still have some time left on the table, since our ignition misfire was still present at the upper RPM range. Until next time… keep it budget and have a blast!