Thanks for the info- I think you are misjudging me since you cannot actually see what I have in front of me on the truck, so let me clarify:

1. 3A Pink goes to Positive terminal on HEI (this is wired as the instructions indicate)
2. 121 White goes to tach terminal on HEI
This wire would have been connected from the "tach" tab on the HEI, to the green wire of the tach itself. The 121 wire was not preconnected to the new fuse block in any way, it was basically like an extension cord between the HEI and the tach. Since the green wire of the tach was already long enough to reach the tab on the HEI, there was no need for the 121 wire. All it would do is add 2 more potential break points to the connection from the HEI to the tach.
3. the tach's main power wire (red) is connected to the harness' 39 wire (pink), as the instructions indicate.

I will figure out how best to hook up my voltmeter gauge from here, I was just looking for how others would/have done theirs. Thank you for your input, though.


1957 Chevy Panel Truck, powered by SBC 350 from 1977 Camaro
Author, Bring CHANGE Into Your Life (a truly easy investment tool)
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