Quote:
Originally Posted by joyridin'
I must have different headers as my car is an Arntz. I have at least 1.5 - 2" clearance between the wire and the header with a Chevy 350, angle plug heads, 90 degree boot running underneath. I will grab a picture later. I will check the plug type also as the boot covers the whole ceramic portion of the plug. My heads may be newer than yours as I believe they are from a 1984 1 ton truck.
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Angled plugs would make a difference for sure.
Knowing what plugs you're using may also be worth knowing.
I'm still trying to determine what the engineering criteria is on a spark plug hole to enable the use of a tapered seat plug. I've read that some heads in the era of mine were designed for both types of plugs.
Looking at the spark plug hole on my heads makes me believe that angled seat plugs may work. The chamfer around the plug hole seems like a perfect mating surface. See photo of my spark plug hole in the link below.
http://m1283.photobucket.com/albumvi...IokUH0sw%3D%3D