Recent tune-up: new plugs, wires, cap & rotor, timing.
88GT speed density.
Mods: MAC longtube headers, underdrive pullies, Black Magic flex-a-lite electric fan, K&N.
Problem has been here for a while. My son and I bought this stang pretty much in pieces and we're putting it back together.
someone mentioned it could even be the EGR causing the idle to creep up. Don't know about any codes or how to even check the codes.
Thanx for the help
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