CLASS RACER FORUM - View Single Post - Autolite double platinum plugs? Also indexing?

Ed Wright · 12-07-2012, 07:30 PM

Artie, only time I ever saw any reason to indexing plugs was to prevent knocking the ends off. I have played with indexing with the car I have now and saw nothing. But, I don't have Hemi chambers. Might make a difference.

I would use plain old non-platinum Autolite plugs. I would want my plugs at least .050" off the pistons at TDC. Closer may require more advance. Something to play with.

12-07-2012, 07:30 PM	#3
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 389 Times in 169 Posts	Re: Autolite double platinum plugs? Also indexing? Artie, only time I ever saw any reason to indexing plugs was to prevent knocking the ends off. I have played with indexing with the car I have now and saw nothing. But, I don't have Hemi chambers. Might make a difference. I would use plain old non-platinum Autolite plugs. I would want my plugs at least .050" off the pistons at TDC. Closer may require more advance. Something to play with. __________________ Ed Wright 4156 SS/JA