reportedly alot of plugs are made overseas now (& I dont doubt it). Good reviews on NGK. I had autolite 65 (iirc) in my 65 dart w '83 318/eddy 1406 & color was good. I did richen the cruise step a bit from what was in it originally. if you find some plugs on sale that'd be what I'd go with. EDIT I wanted to ask: did you use the matching P coil I II III for the I II III P system you installed? I was wondering if you use a regular coil (with the P system) if you should keep the ballast expecially since the I and II p systems ain't multispark (tho you would want full 12V to the P module. Eric what do the instructions say regarding this. I believe multispark which the P iii is will let you run full 12V to a coil that is originally intended to have a ballast in ign1 run but maybe they are telling you to run full 12V to any coil you use. Any thoughts