go shift kit first, that should save a few tenths of your 1/4 mile times. but it sure does sound nice having a good exhaust system when your running down the track!
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89 GT AOD w/ shift kit, B&M rachet shifter, Trickflow intake, Crane (E-type) cam, 70Tb, 75MAF, 1.6 Rockers, Pulleys, MAC headers and H-pipe, Dynomax mufflers, K&N, 3 core radiator, white face gauges, custom interior, cobra R rims
89LX 2.3 Notch, daily beater!
MY89GT