Here is my $.02. I’ve experimented with OEM HD plugs, HD Gold plugs, HD platinum plugs, NGK iridium 8’s & NGK 9’s. All of the HD plugs came gapped at .035 and worked ok. The NGK’s have generally come...
Type: Posts; User: TapRoot
Here is my $.02. I’ve experimented with OEM HD plugs, HD Gold plugs, HD platinum plugs, NGK iridium 8’s & NGK 9’s. All of the HD plugs came gapped at .035 and worked ok. The NGK’s have generally come...