When I'm at a stop light, my speedo starts fluttering up and down, and my odometer continues to climb...has anyone else encountered this problem?


2000 Black SVT #2639/2760; w/18 OZ Superleggera's, Pirelli Pzero Nero. MSDS Headers,Quaife LSD, CF DF, Borla,,chipped,DMD,Baer Track rotors. Lowered/HR and Koni's; HPP & OMP 3L Valves w/ P&P Heads (thanks Kinger!)