if it is a hei ignition there is a place on the distributor cap that says tach.
On the dist., cap, where the wires go in, there is a tab labeled TACH.
I wasnt aware Chevy used a 400cc engine
You would hook to the negative side of the coil. Some HEI distributor caps are marked "tach".
need to know how to hook up the wires on the engine on F-150 pick up to make a pro tach rpm gauge work
how do you hook up a sunpro super tach 2
one white wire goes to the distributor, the other goes nowhere. This is the lead that goes to the tach
to hook up the tach use the hot lead on the disributor and to any good ground wire and if there is a light hook it to the wire on you light switch
Should have four wires: Positive, Ground, Light, and Tach. Put ground first! I made this mistake and took out all the lights in my dash. Hook the tach wire up to the male end on the distributor cap (you'll have to route it through the firewall). Hook the positive up to a nearby wire or open spot in your fuse box. I tapped off the radio. Hook the light into your panel instrument light circuit.
I can't find the connection point for a tachometer on my 1988 Chevy S10 with a 2.8 L engine.
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'.
Hook it to the negative side of the coil.
Driver side rear between firewall and engine block. It is bolted in with one of the engine and trans bolt. You will have to remove the wiper motor to get to it.