Anybody know how to wire a parts place hood tach? I bought one a year ago and never had a chance to install it and I realized it didnt have a wiring diagram. I plugged the red thing into the power part on the distributor and that didnt work. then i cut the red thing off and wired it directly to the tach section of my distributor (Small block chevy fyi) and it STILL didnt work. like when I turn on the car I know it has power, and it bounces to 8000 and back to 0 but when I rev the motor the tach stays at 0. any ideas?