why not bosch platinums?

[HISSIN50]

as an aside, using neverseize on the plugs is a good idea.

 

[RYC CUKR]

I run autolite 104s in my P heads.

 

[Mustang5L5]

Multi-prong plugs are pointless and a waste of money.

The spark can only use 1 prong at a time so what do the other 3 do? They just block the spark from seeing all of the air/fuel mixture.

Plat plugs only benefit is they last longer. Platnium is generally not regaurded as a good conductor of electricity. Silver is the best followed by good ole cheap copper.

5.0's love copper plugs.