Stock they run any where from 13.7-14.0 (at least thats what I see on
www.F150online. But they have very mild shifts and a mild computer program from the factory. Usually, w/ only a chip and air intake, they can go 13.1-3 all day.
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1997 Thunderbird 4.6L: Dynomax exhaust, Mustang intake tube, SVT Lightning 80mm MAF, Accufab MAF adapter, 7" Auto-physics powerstack filter, ram air, B&M 24,000GVW trans cooler, Custom chip, FMS 9mm wires, many more to come...
No Longer own: 91 LX 5.0L 5 spd Red w/ black interior
2 chamber flowmasters, Bassani off-road X-pipe, MAC cold air induction, Kirban short throw, Heavy duty 3 core radiator, FMS 3:73's, Timing bump to 14 degrees, SRP billet racing pedals, Kenwood sound system