Ok lets think about this one....fix an annoying exhaust leak or get more goodies to make it faster and still deal with the annoying exhaust leak? I think that is self explainatory!!!!
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89 5.0 Coupe, 5.0 roller motor, chrome moly rings, fully ported stock heads,.550 lift cam, Performer RPM intake, 650 Holley, AOD with a shift kit, 3.55's