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  hey Alex,spark plugs for World Product sportsman II

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Author Topic:   hey Alex,spark plugs for World Product sportsman II
popeye
Journeyman

Posts: 60
From: midwest USA
Registered: Dec 2002

posted 07-31-2003 11:41 AM     Click Here to See the Profile for popeye   Click Here to Email popeye     Edit/Delete Message   Reply w/Quote
We are using autolite # 25 gapped at .040 with 11.00 to 1 comp(dome)ratio,billet MSD advance locked out set at 35 degrees btdc,using Union 76 108 race fuel.Do you have any other plug suggesttions? thanks,popeye

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This is FORD COUNTRY, where on a quiet night, you can hear a chevy rusting

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Dave_C
Gearhead

Posts: 740
From: Gadsden, Al
Registered: Aug 99

posted 07-31-2003 05:42 PM     Click Here to See the Profile for Dave_C   Click Here to Email Dave_C     Edit/Delete Message   Reply w/Quote
I'm not Alex, but my old car had those heads. Tried many plugs, but the best was Autolite Racing plugs # AR135. BTW, they come pre-gapped at .026. But, the electrode is cut back to the side. Don't change the gap. Alex carries them. You can also get them on overnite order from Advance Auto Parts, if you have one in the area.

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kid vishus
Gearhead

Posts: 4377
From: middle of NC
Registered: Oct 2000

posted 07-31-2003 05:52 PM     Click Here to See the Profile for kid vishus   Click Here to Email kid vishus     Edit/Delete Message   Reply w/Quote
Yep, the AR plugs are the best plug out there right now. That's what is in my racecar, and I even stuck a set in KK's racer.

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popeye
Journeyman

Posts: 60
From: midwest USA
Registered: Dec 2002

posted 07-31-2003 10:34 PM     Click Here to See the Profile for popeye   Click Here to Email popeye     Edit/Delete Message   Reply w/Quote
Thanks for the replies guys.How does the Autolite AR135 compare to the #25 or #24 for heat range? I Was going to try a #24 this weekend.popeye

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This is FORD COUNTRY, where on a quiet night, you can hear a chevy rusting

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Dave_C
Gearhead

Posts: 740
From: Gadsden, Al
Registered: Aug 99

posted 07-31-2003 11:16 PM     Click Here to See the Profile for Dave_C   Click Here to Email Dave_C     Edit/Delete Message   Reply w/Quote
The AR 135 will be a little colder. Take a look at this chart:
http://66.155.51.113/technical/sheets/spark/Autolite.pdf

Look at the top right and you will find the 14mm, tapered seat, .460 reach plugs. The 135 is in the same family as your 24/25's. The 23-26's have a powertip vs the std tip on the 131-136 and run a little hotter. On the chart the AR designation is not listed, just the 135 etc. The AR racing plug is the same design, but it has a nickel body with the back cut electrode.

Here is a complete listing of the AR plugs:
http://cpgparts.alliedsignal.com/cpg/catalog/autolite/legal/RacingCrossRef.pdf

Later,
David Cole

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