Mustang got a bump to 420 in 2013. he is correct that the 2011-12 make 412 on premium fuel. They automatically change the tune based on fuel.... Well knock... but fuel.
2012 F-150 FX4 Screw, 3.5TT, 3.73 Loaded
1999 F-150 Scab 4x4 O/R, 5.4l (swap) LT header, True duals, CAI, Custom Tune, Airbags, FX4 rims, Navigator interior
2010 Taurus SEL