Whats your favorite spark plug?

[76Broncofromhell]

On a high-energy ignition in a fairly mild motor the plugs' brand really doesn't matter that much. All that really matters is the heat range since most modern plugs fairly good. I run Autolites in mine because nobody makes BF32C's any more and I needed to drop a heat range.

 

[68ford]

i think they are so close to same its irrelevent, but i always run one that the threads and sealing chamfer area isnt chrome plated, that shit always seems to chip off, and they seem to leak a little around the plug sometimes, and i dont like the idea off chrome chips possibly going inside a cylinder when changing plugs. i like motorcrafts, nice heat treated threads and surfaces, no chrome plating to chip off and not seal right.