I have a 350 engine that started missing intermitently on a cylinder. I changed the plug wires and it ran OK for a week but now the problem is back.

It has a Pertronics distributor and Taylor wires.

Any ideas on what it could be are appreciated !

Pull the plugs and see which one isn't firing and go from there.

I thought somebody might have taken it? :D

I thought somebody might have taken it? :DI'd look under the hood, I'll bet you find it there. ;) :D