What are the best spark plugs for a 90 Cherokee 4.0L Inline 6?

[gradon]

I just installed double platinum autolites, Accel cap, rotor, coil, and Magnecor kv85 wires and my 94 is running better than ever! She really impressed me tonight. My Champions were still in good shape, but I wanted to do it all at once.

 

[anodyne33]

I replaced mine with glow plugs and run jet fuel.

 

[mikeny59]

private or commercial?!?