95GTease

I just installed new Ford Racing 9mm spark plug wires on my 1995 351w and it runs really bad now, I can't understand why. It just sounds like it's missing a little, and the power isn't quite all there. I installed my old wires, which are ford motorsports wires and it ran perfect again. Has anyone had any issues with Ford Racing 9mm wires? What is the best wires to use for the 351w? Thanks in advance guys.

9redfox3

Maybe by chance you might have crossed wires on the plugs or one of them isn't connected right? I have them on my mustang never had an issue with them....

Duncan_GT

Sounds like you might've swapped a couple wires backwards. I didnt that w stock wires and it ran horribly. If you know you installed them correctly then i would check thw boots for nice snug connection. I had one barely pop off and cause misfires