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Author Topic:   spark plug recommendation?
MrWesson22
Gearhead

Posts: 1286
From: Dacula, GA
Registered: Sep 2000

posted 03-06-2002 10:05 PM     Click Here to See the Profile for MrWesson22   Click Here to Email MrWesson22     Edit/Delete Message   Reply w/Quote
Could you recommend a spark plug for a street/strip 351C 4V running 10.8:1?

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Neal
Member #723
[email protected] AIM: MrWesson22

69 Gulfstream Aqua Grande
351C/Toploader 4sp

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Hemikiller
Gearhead

Posts: 667
From: Killingworth, CT
Registered: Feb 2002

posted 03-06-2002 10:53 PM     Click Here to See the Profile for Hemikiller   Click Here to Email Hemikiller     Edit/Delete Message   Reply w/Quote
Autolite 23, 24 or 25, depending on what your engine prefers. Trial and error. 25 is hotter, 23 is colder.

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MrWesson22
Gearhead

Posts: 1286
From: Dacula, GA
Registered: Sep 2000

posted 03-07-2002 10:39 PM     Click Here to See the Profile for MrWesson22   Click Here to Email MrWesson22     Edit/Delete Message   Reply w/Quote
thanks. anyone else??

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Neal
Member #723
[email protected] AIM: MrWesson22

69 Gulfstream Aqua Grande
351C/Toploader 4sp

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kid vishus
Gearhead

Posts: 6590
From: middle of NC
Registered: Oct 2000

posted 03-07-2002 10:51 PM     Click Here to See the Profile for kid vishus   Click Here to Email kid vishus     Edit/Delete Message   Reply w/Quote
I like NGKs, a -6 is what I wouwd put in it. If thats too hot, a -7 is one colder, but its a fairly cold plug for a street car. (I run -8's in my racecar)

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Dave_C
Gearhead

Posts: 1069
From: Gadsden, Al
Registered: Aug 99

posted 03-07-2002 11:04 PM     Click Here to See the Profile for Dave_C   Click Here to Email Dave_C     Edit/Delete Message   Reply w/Quote
I don't know how well they would work in a street car, but I really like the Autolite AR25 racing plug. Similar to the regular Autolite 25, but has a back-cut center electrode and a nickel plated body. It was worth .05-.06 over the regular Autolite. Not much, but at $1.69 each (overnite order at Advance Auto chain) they are worth it.

Later,

David Cole

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Moneymaker
Administrator

Posts: 27499
From: Lyons, IL, USA
Registered: May 99

posted 03-07-2002 11:52 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Well let's see now, you can get eight of us to give you eight different recomendations and them you could have eight different plugs in the engine. Wouldn't that be cool?
ASF-32 Motorcraft

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Alex Denysenko
Co-Administrator and Moderator/ non 65-66 Mustang owner sensitivity co-ordinator

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1trickpony
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Posts: 107
From: Escondido, Ca
Registered: Oct 2001

posted 03-08-2002 02:32 AM     Click Here to See the Profile for 1trickpony     Edit/Delete Message   Reply w/Quote
I'm actually a Bosch Platinum kinda guy.
Love those plugs.

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1969 "S" code Mach1

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MrWesson22
Gearhead

Posts: 1286
From: Dacula, GA
Registered: Sep 2000

posted 03-09-2002 01:10 PM     Click Here to See the Profile for MrWesson22   Click Here to Email MrWesson22     Edit/Delete Message   Reply w/Quote
I really appreciate it. Yeah, imagine that - people liking different brands. The world would be so much better if we all had the exact same taste (my taste of course) and drove the exact same car.

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Neal
Member #723
[email protected] AIM: MrWesson22

69 Gulfstream Aqua Grande
351C/Toploader 4sp

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Mpcoluv
Gearhead

Posts: 1341
From: Charlotte NC usa
Registered: Apr 2001

posted 03-10-2002 09:22 AM     Click Here to See the Profile for Mpcoluv   Click Here to Email Mpcoluv     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by Moneymaker:
Well let's see now, you can get eight of us to give you eight different recomendations and them you could have eight different plugs in the engine. Wouldn't that be cool?
ASF-32 Motorcraft


Alex, I am currently running a autolite #25... Is the ASF-32 a hotter plug?
I really could use a hotter plug...any reccomendation for a 10.4:1 372C which runs reformulated gas in heavy traffic/idling in the driveway?

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MrWesson22
Gearhead

Posts: 1286
From: Dacula, GA
Registered: Sep 2000

posted 03-11-2002 05:25 PM     Click Here to See the Profile for MrWesson22   Click Here to Email MrWesson22     Edit/Delete Message   Reply w/Quote
I bought the asf-32. I'm using a full msd ignition on the car - what should I gap these at? Thanks!

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Neal
Member #723
[email protected] AIM: MrWesson22

69 Gulfstream Aqua Grande
351C/Toploader 4sp

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SteveLaRiviere
Administrator

Posts: 45869
From: Saco, Maine
Registered: May 99

posted 03-11-2002 05:26 PM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
.035"

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'70 Mustang Mach 1 M code 351C 4V/FMX/3.25 open
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip

MCA Member # 47773

Always borrow money from a pessimist, they don't expect it back.

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steve'66
Gearhead

Posts: 9533
From: Sonoma,CA,USA
Registered: Mar 2000

posted 03-11-2002 05:54 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by MrWesson22:
Could you recommend a spark plug for a street/strip 351C 4V running 10.8:1?



YES, spark plugs are good


SteveW

[This message has been edited by steve'66 (edited 03-11-2002).]

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70coupe
Gearhead

Posts: 483
From: Toronto,Ontario,Canada
Registered: Aug 2000

posted 03-11-2002 07:17 PM     Click Here to See the Profile for 70coupe     Edit/Delete Message   Reply w/Quote
ASF42C!!

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7DMACH1
Gearhead

Posts: 2718
From: PHILA. PA.
Registered: Feb 2001

posted 03-11-2002 08:06 PM     Click Here to See the Profile for 7DMACH1   Click Here to Email 7DMACH1     Edit/Delete Message   Reply w/Quote
AUTOLITE 25 = MOTORCRAFT ASF-42C HOTTEST
" 24 = " ASF-32C COLDER
" 23 = " ASF-22C COLDEST

R A Y

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THE CAPRI IS FOR SALE IN THE CLASSIFIED SECTION RAY . 70 MACH 1 351C NOW 408 STROKER 4SPD.
86 MERCURY CAPRI 5.0 RUNS 12.86 @107 1.65 60 ft.
2001 LINCOLN LS V8 1997 MUSTANG
http://www.geocities.com/slariviere/7DMach1.html

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Mpcoluv
Gearhead

Posts: 1341
From: Charlotte NC usa
Registered: Apr 2001

posted 03-12-2002 11:16 AM     Click Here to See the Profile for Mpcoluv   Click Here to Email Mpcoluv     Edit/Delete Message   Reply w/Quote
Is an ASF-52 1 step hotter than an ASF-42?

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7DMACH1
Gearhead

Posts: 2718
From: PHILA. PA.
Registered: Feb 2001

posted 03-12-2002 12:06 PM     Click Here to See the Profile for 7DMACH1   Click Here to Email 7DMACH1     Edit/Delete Message   Reply w/Quote
YES. But I don't think I'd want to use it. The std plug is a 42 a 52 is pretty hot. RAY

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THE CAPRI IS FOR SALE IN THE CLASSIFIED SECTION RAY . 70 MACH 1 351C NOW 408 STROKER 4SPD.
86 MERCURY CAPRI 5.0 RUNS 12.86 @107 1.65 60 ft.
2001 LINCOLN LS V8 1997 MUSTANG
http://www.geocities.com/slariviere/7DMach1.html

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