Join Date: May 2007
Location: Baltimore Maryland
Which wire do you have running to the MSD box? Maybe you accidently ran the wrong wire for the signal? I have done it before. It's an easy mistake to make. I have my Autometer tach grounded right to the steering column mount bolts. Right at the start of the dash.
Charlie Knudsen 67 Camaro RS/SS 350 TKO 600, 4.10's, AFR 195 Street Heads, Comp 270H, Rhoads Lifters, Crane Ignition, Pertronix Dizzy, Performer RPM Q-Jet, Heavily Modified Q-Jet, Hooker Comp Headers, MagnaFlow 2 1/2", 144 Decibles(Alpine CDA-7998 Head Unit, RF X7 and RF 750X Amps, MB Quart Mid's & High's, Kicker L7 12" Solo Barics)