Was running Champions in my Cordoba before I pulled the motor. I think the current plugs in my truck are Autolites. Haven't touched them since I bought the truck, except when I checked No. 1 plug for deposits a few months ago.

Had to run Autolites in my Eddy head stroker motor, since the bosses weren't machined large enough for 13/16 plugs, and could only find Autolite 5/8 plugs.

The Dusty W-100 :: Rebuilding the Cordoba :: Building a Stroker 360 :: DustySpace