Tired of reading ?hook up one wire to the ignition switch ON position and you're done

[xuno_gil]

Ok, like the title says, I?m tired of seeing that. I will be connecting my HEI distributor next week and the only part that is confusing me is that part.
What do you hook it up to?
I?ve looked and looked and looked and maybe it?s because it very obvious but I?m sorry I have no idea.
So where in the distributor does the new 12V keyed wire go to? If it take the coil cover off I see a red, yellow, and black wire, the black wire does not seam to be plugged to anything, is this where the keyed 12V wire goes to?
Sorry for my ignorance but I was just tired of searching and finding the same exact phrase everywhere. So if someone could just tell me it would ease my headache.

Also, eventually I want to install a tachometer, should I do anything to make that installation easier at a later point? Thanks

[hookedup50]

On my 89 the yellow wire that went to the coil was the one wire. Never got to the the tach, but snaked a wire and put in the loom cover and ran it through the bulkhead area of the firewall in the hopes it would help me later. Hope this helps.

[Stuka]

You didn't state what year this was going on, as its varies.

But, your current coil will already have a switched +12V lead going to it. Although this may be less than 12V depending on year. Some years have a inline resistor to drop the voltage. A multi-meter will tell you if this is the case. But this line will work for you if it is 12V. If not, you will need to remove the resistor.

[xuno_gil]

your current coil will already have a switched +12V lead going to it. Although this may be less than 12V depending on year. Some years have a inline resistor to drop the voltage. A multi-meter will tell you if this is the case. But this line will work for you if it is 12V. If not, you will need to remove the resistor.

This is for my 76 J-10
so if one of these wires will work, does it matter what wire on the actual distributor I should hook it up to, hookedup50 - what made you choose the yellow one or was it a trial by error?

[hookedup50]

The yellow had power with key on when tested. The wiring schematic also helped.

[serehill]

yup

It should be on the on I saw was the yellow wire just connected to the old ignition system feed wire & you're done.

[Stuka]

My 75's was red. It will be on the + side of the coil. But be sure to check the voltage, my '75 had the ballist resistor.