Autolite... Plain old autolite resistor plugs... #65. The emissions man says that the cO and the nI content is down as compared to all these new Zippy plugs, meaning a better burn in the combustion chamber... Champions I wouldn't give a dollar for a set of 8 NGK are good plugs Splitfire actually made the engine in my jeep run worse and the fancy Bosch stuff isn't worth the $$$$
Helps to have a friendly shop with an exhaust gas analyzer...
We messed around with a lot of plugs over the years...
High quality parts for your Land Rover at a reasonable price!!!