[DeTomaso] Spark plugs

[cengles at cox.net]

Dear Ian,

I checked with the Autolite Customer Service line. The R stands for Race application and, in my experience, a colder plug ill suited for street use. When used on the street they rather quickly foul.

Warmest regards, Chuck Engles



---- Ian H <ihannington286720mi at comcast.net> wrote:
>I figured that the R may stand for resistor, but I thought I ask the "experts" anyway.

Ian
----- Original Message -----
From: JDeRyke at aol.com
To: ihannington286720mi at comcast.net ; detomaso at realbig.com
Sent: Friday, June 05, 2009 1:54 PM
Subject: Re: [DeTomaso] Spark plugs


In a message dated 6/5/09 4:53:37 AM, ihannington286720mi at comcast.net writes:


What is the diference between Autolite AF-42 and ARF-42 plugs? The ARF's are listed for Boss 351, and the AF's are for standard 351 C's.


I'm guessing, Ian (since I haven't called up Autolite's website), but the ARF-42s are likely resistor plugs while the others are not. The heat ranges etc should be the same for both. Best guess- J Deryke