Butler Custom Spark Plug Wires are measured and assembled with Wire Separators Installed and Numbered, to be custom routed around your engine instead over the top of your valve covers
(Since Ignition Coils can be mounted in various locations we leave the coil wire unassembled so it can be cut to length)
Measured, cut, assembled, and tested (ohmed) in our own shop
To install find top dead center on number 1 cylinder on Compression stroke (passenger front), point rotor button toward engine slightly toward #1 cylinder. Align cap as shown in the picture
