Since the coil is in the distributor, simply hook the tach 'trigger' wire to the out put on the side of the distributor cap marked 'tach'.
It's the wire coming from the negative side of the coil.
no
Doors from a 1978-87 El Camino or GMC Caballero
green signal wire goes to the negative side of coil, not the positive. On your tach you probably have a ground(black),power(red), signal(green) and illumination(yellow?) wires. The signal wire splices into the positive side of the coil. The rest of the wires are pretty self explanatory. Make sure you have a solid ground and power. The illumination wire can be hooked into the headlight switch so it goes on with your lights. Tim The statement above is true for hooking up a tach. I just installed one in my 87 gmc s15. the trucks are set up from the factory to come with one, so you will find a wire located in the wiring harness that has a hookup for your tach. This is so you dont have to mess with the distributer set up. This may save you some time.
Yes you can no problem.
Any 1978-87 El Camino or GMC Caballero
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87 octane
1959-60, 1964-87
205- 70R -15.
pore
In the gas tank.