This is starting to sound very familiar. Rich exhaust, black plugs, surging idle, bucking while driving, generally running like crap. That's what my car did and it was caused by 9" of vacuum instead of the 15" I was pulling when I got it running right.
If you have all of these problems too you might want to check your vacuum. It's easy to check anyway so it's always a good place I start.
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Project: 1988 Coupe - EFI 5.8L Twin Turbo with Victor intake, Canfield heads, F303 cam, March aluminum underdrive pulleys, TKO (or T56 if funds permit), PBR twin piston calipers and 13" rotors up front, 94 Cobra rear calipers and 12" rotors on the rear, 3.73's, Griggs K-member, tubular front control arms, torque arm and panhard bar, polished 99 Cobra wheels.
"The GR-40 kit installation is now complete, and the humble Fox-chassis car will now out-corner and out-stop a ZR-1 or a Viper, and support massive horsepower additions with perfect balance."
Griggs Racing
ICQ# 42269241
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