You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!
This truck has the factory ignition spark set-up. So, sounds like .042 - .046 will work?
Yes, somewhere in that range. I generally gap mine at .044.
As far as aftermarket ignitions (Mallory, MSD, Crane, Jacobs, etc.), some recommend opening up the gap due to more electrical current being available with their system. You'd just need to play with the gap based on the recommendations of the respective manufacturers.
hi sorry to buzz in. what do you think the gap should be when running an MSD system?
I run 8.5 mm wires and premium cap and rotor and have my plugs gaped at .60 the truck runs great with smooth idle and great performance.
The TFI coil is the difference, I could have bought a Blaster oil filled coil but the TFI Ford coil does a better job and you can pick one up at the auto wreckers for cheap, also make sure you remove the resistor form the ignition wiring it has one, the one that goes to the coil.
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.