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Holley transmission harness routing

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Old May 29, 2026 | 12:55 PM
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formularpm's Avatar
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Joined: Sep 2002
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From: Nebraska
Car: '89 Formula
Engine: 355
Transmission: 700R4
Axle/Gears: 9 bolt
Holley transmission harness routing

Hoping someone has some experience with this. Going to be switching from Holley HP to a Dominator, and need to figure out how to route the J4/P4 harness out of the interior and down to the trans.

I still have all of the HVAC equipment so can't use the A/C holes, the engine and chassis harness is using the passenger fender hole, and I'd prefer not to drill any 1.5" holes if possible.

Anyone have a good solution for this?

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