Re: Mike P 1955 400 Slow Resto Thread!

Posted by Packardfan On 2022/7/19 13:02:54

Ok so after reading a TON about spark plugs I am still kinda lost which set of the plugs below would you get for a 55 400?

7/16" Reach.........AC43LS gap.035.

3/4" reach AC 45RXLS or 45XLS gap .035.

I could get the 45RXLS from O'reilly but I think the others I can get from Ebay.