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Old 08-15-2013, 11:16 PM   #2
VetteVet
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Join Date: Jan 2005
Location: Kalamazoo, Michigan
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Re: 72 C-10 Engine wiring harness

Quote:
Originally Posted by stupidfish1 View Post
Hi. I'm converting my 72' C-10 with an L6 to HEI. Done quite a bit of research online and decide to draw my constant 12 volts from the "keyed" port where my original resistance wire was located. Removed the wiring harness, cleaned and removed unnecessary wiring and traced the original resistance wire back to the harness block.

It is piggybacked to a 8-10ga. wire running to my choke solenoid? This piggy back was obviously done either professionally or factory. I've never seen this on any schematic? Seems like a lot of current to put another 12-14 gauge wire on here to supply the new distributor?

Any suggestions would be greatly appreciated.
I would like to keep this install relatively "clean" that's why I decided on this port rather than going to one of the non fused ignition tabs on the fuse block.

Thanks in advance, Steve H.
Hi Steve and welcome to the forum.

I never recommend tapping anything off the distributor wire, especially an HEI. I know a lot of guys do it for the choke coil. A 16 gauge wire is plenty big for the choke coil and 8 to 10 is ridiculous.

Any key on hot wire such as the wiper yellow wire or the heater fan switch wire., or the brown accessory wire would be good with a 10 amp fuse inline.
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