How much do you know about spark plugs? As in.. what do you know about plugs that leads you to believe there's an "upgrade" and what does "upgrade" mean to you exactly? What don't you like about the champions? Are you trying to find power in changing spark plugs..?..
if so , stop wasting your time.
Go play with the distributor timing and advance... that can find you more power.
Makes me laugh at that one. A close friend is replacing his Mopar electronic distributor for one of those Whiz Bang 2000 units and matching coil and wires. Going to make a hotter spark and more power! :thumbsup: :rofl::rofl::rofl: