i was wondering how much of a difference a set of gt40 heads from a 95 cobra with 77,000 miles on it would give me over stock??? i'm mostly wondering about horsepower...
i have a 1992 mustang gt w/1:6 roller rockers, e303 cam, cobra upper and lower intake, 70mm throttle body, 73mm mas air calibrated for 24# injectors, 24# injectors, mac cold air, mac aluminum underdrive pulleys, 3:73 gears, mac shortie equal length headers, custom x-pipe w/ flowmasters thats dumped, short throw shifter
i have a 1992 mustang gt w/1:6 roller rockers, e303 cam, cobra upper and lower intake, 70mm throttle body, 73mm mas air calibrated for 24# injectors, 24# injectors, mac cold air, mac aluminum underdrive pulleys, 3:73 gears, mac shortie equal length headers, custom x-pipe w/ flowmasters thats dumped, short throw shifter