It is an MSD billet Magnetic Pickup with a Blaster 2 coil. The Tacho is a Stewart Warner #832795. The Tacho has different wire colour coding to say an Auto meter. Green is the light, Grey is Trigger, Red is Pos ,black is Neg.
The ignition is in the car and running. The Tacho was in the car but not connected when I bought it. I have sold the car but the guy wants the tacho connected and working when he picks it up. I thought it would probably need a MSD Tach adaptor but it needs somewhere to plug it into,The blaster ignition box doesnt have a tach adaptor like a 5 or 6AL. Thanks Chris