Under-The-Header Spark Plug Wire Routing

[JCampbell]

I’ve searched and searched and searched, and while there are multiple threads on under-the-header plug wire routing, there’s virtually zero technical information on how to accomplish this. The only commercially available under-the-header wire loom (that I’m aware of) is from Moroso (pn 72195) and it’s total garbage. Bought a set and both mounting tabs on the 2-wire holders snapped off when I tried installing them onto their respective brackets. Returned them and am now looking for another method.

I find most of the commonly used wire looms that run the plug wires over or down the side of the valve covers/heads too gaudy for me. Besides that, the CA-legal headers I have to run utilize the A.I.R. tubing which precludes routing the plug wires along the top side of the head because there’s no room to snake the wires between the head and the A.I.R. tubing. Neatly, anyway.

Aside from sourcing another commercially available wire loom kit that I’m currently unaware of, my only option appears to be fabricating my own brackets. I’d like to see what, methods have been used by any of you to route your plug wires under the headers. Looking for specific, detail-oriented responses/pics. And if you’re aware of another commercially available kit, speak on it.

Since I know it’s bound to come up, yes, I’m aware of the circle track style, zip-tie method. I’ve used it in other applications, but I’m looking for something a little more professional than that for this app.