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Re:Changing spark plug 6-reply-reply



>Hey Larry

>        I just got a new set of ATR wires and was wondering which plug gets
>the angle boot and which gets the straight.  When I pulled the stock wires
>off the plugs, plug 1 and 6 had straight boots.  Also, I assume you are
>using AC CR42TS plugs.  What do you have them gapped to (I believe they come
>at .045)?  What tool do you use to tighten the gap?  I heard its not good to
>tap on them.  I thought you would be a good person to ask these questions
>to, since you have had alot of recent experience.  Thanks in advance.

>Jason Moore
>Syclone@fred.net
>1991 GMC Syclone
>#1994 of 2998

Mine still had the stock wires, and #6 got the angle boot
which is only about a 20-30 degree angle, some of
the others were 90s. I just matched up the ATR
wires with the orig based upon length. The ATR angle
boots matched the orig.

Yep, the ACs came gaped at .045, and even with
the new MSD, I decided, after reviewing past list 
gap messages, to regap to .035....I used the
old tap it on the vise method(but gently) Have
done it this way since time began(the 60s) and never
had a plug problem. Back then plugs lasted me 1-2 months
thanks to 13 to 1 compression.

The Sy really came back to life with the new wires
plugs/cap/rotor and MSD...Have not had any radio
interference problems that prior list messages
showed that some have had after a MSD install

Hope this info helps you Jason...

Larry Wright/San Francisco Bay Area
#411 Sy