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Old 05-25-2015, 09:10 PM   #1
bobpo1
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Default Best plugs..??

What do most of you feel are the "Best Plugs" for a stock Model A..??
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Old 05-25-2015, 09:20 PM   #2
Gary WA
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Default Re: Best plugs..??

Depends how you drive. I Use 3x repos.
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Old 05-25-2015, 09:28 PM   #3
J Franklin
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Default Re: Best plugs..??

I use 3x Champions, gapped .025 with a 5.9 brumfield head, & .100 overbore

Last edited by J Franklin; 05-27-2015 at 09:14 PM.
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Old 05-25-2015, 09:32 PM   #4
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Default Re: Best plugs..??

me to
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Old 05-25-2015, 09:45 PM   #5
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Default Re: Best plugs..??

It depends on what you are going for. In my barn find Tudor, I have the original plugs (champions) that work just fine. In my truck, I have new champion "go plugs". In my tractor, I run the standard fomoco plugs for a's. All seem happy.
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Old 05-25-2015, 10:03 PM   #6
Mike V. Florida
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Default Re: Best plugs..??

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I don't think you will find an universally accepted "best plug".

I use the 16y's. The work, cheap, and look beefier then the autolites. Are they better then the autolites, no. I just like the looks of them.
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Old 05-25-2015, 10:34 PM   #7
George D
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Default Re: Best plugs..??

Re-pop 3x champion seem to chew their way through pretty good. Got them as a gift, an expensive gift.
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Old 05-26-2015, 05:21 AM   #8
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Default Re: Best plugs..??

CLEAN PLUGS is always best.
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Old 05-26-2015, 05:28 AM   #9
RonC
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Default Re: Best plugs..??

http://www.oreillyauto.com/site/c/de...-1&keyword=429
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Old 05-26-2015, 05:52 AM   #10
C26Pinelake
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Default Re: Best plugs..??

I use 3X's in all my A's. Wayne
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Old 05-26-2015, 08:19 AM   #11
JD 1931
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Default Re: Best plugs..??

I use champion W-18 in my stock A, NAPA @ $9 each, have used them for many years and perform well with the stop and go driving here....
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Old 05-26-2015, 10:11 AM   #12
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Default Re: Best plugs..??

I like the discription... "Champion Racing Plugs Power More Race Cars To Victory Than Any Other Spark Plug."

Now you can tell everyone you have "Racing Plugs" in your Model A.
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Old 05-26-2015, 10:29 AM   #13
CarlG
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Default Re: Best plugs..??

W-18

But only if:
• you use 15/40 Rotella
• you have blackwall tires
• you have a 160° Thermostat
• you have a 12v alternator
• and an overdrive
• A/C is optional
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Old 05-26-2015, 10:48 AM   #14
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Default Re: Best plugs..??

The O'Reilly description stated a plug gap of 0.033" to 0.038". What do you use for Model A's? Isn't .018 to .022 recommended?
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Old 05-26-2015, 10:54 AM   #15
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Default Re: Best plugs..??

Please disregard my earlier post, obviously I was thinking of points. However I am interested in what you use for spark plug gap if you run a high compression head.
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Old 05-26-2015, 10:56 AM   #16
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Default Re: Best plugs..??

Quote:
Originally Posted by CarlG View Post
W-18

But only if:
• you use 15/40 Rotella
• you have blackwall tires
• you have a 160° Thermostat
• you have a 12v alternator
• and an overdrive
• A/C is optional
Will these work with juice brakes?
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Old 05-26-2015, 11:16 AM   #17
BILL WILLIAMSON
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Default Re: Best plugs..??

Quote:
Originally Posted by Y-Blockhead View Post
I like the discription... "Champion Racing Plugs Power More Race Cars To Victory Than Any Other Spark Plug."

Now you can tell everyone you have "Racing Plugs" in your Model A.
Run whatever plug that gives you that LIGHT TAN color on the inside porcelain insulator.
On racin' plugs: I bought me sum RACIN' SHOES & sum RUNNIN' SHOES, neither made me FASTER
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Old 05-26-2015, 12:05 PM   #18
CarlG
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Default Re: Best plugs..??

Quote:
Originally Posted by Tiny View Post
Will these work with juice brakes?
Haven't tried it, but probably not.
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Old 05-26-2015, 01:23 PM   #19
Kurt in NJ
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Default Re: Best plugs..??

I have the best free spark plugs-- 3X, got 2 sets from the trash at Hershey, lifetime supply , I run the car lean enough to burn black fouled plugs clean and white
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Old 05-26-2015, 02:29 PM   #20
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Default Re: Best plugs..??

Quote:
Originally Posted by djlanier View Post
Please disregard my earlier post, obviously I was thinking of points. However I am interested in what you use for spark plug gap if you run a high compression head.
A good stock coil should fire the plugs fine with .035" gap, but many will cut back to .025" to .030" just because the higher compression takes more voltage to jump the same gap. The wider the gap, the harder the coil has to work, but it will more easily fire a lean mixture with the wider gap. I've never had any spark miss by using .035" on my stock head, and I'll probably try .030" gap on my 5.5 head when I install it.
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