Spark Plugs

Charrlie_S said

I like NGK. The particular plug depends on year of cyl head, and whether the engine is stock or modified, and usage.

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It's a stock engine, late 60'7 early 70's. She's my cruiser and is driven locally and on highways on a weekly basis.
It's an automatic with 3:55's stuffed in a 7.25, it's soon getting it's 2 barrel setup......