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09-18-2003, 03:33 PM | #1 |
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Join Date: Aug 2001
Location: VAFB, CA
Posts: 47
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Sparkplugs for GT40P Heads
What sparkplugs are used with the GT40P Heads..... I am putting some GT40P Heads on my 91 coupe....
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2002 F150 SuperCrew 1990 5.0 LX Coupe 1989 Saleen Convertible #243 1965 Fastback - 331 Stroker/T-5 swap |
09-18-2003, 11:13 PM | #2 |
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Join Date: Jul 2000
Location: Norman, Oklahoma, USA
Posts: 597
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Ford Motorcraft AWSF-32C.
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Michael Black QuantumMotorsports Norman, OK 1984 LX Hatch 306 w/ TRW forged flat toppers, Comp Cams Magnum 292H, GT40P heads w/ 3 angle valve job, .550 lift springs, Angus Racing Roller Rockers, Weiand Stealth Intake, Holley 4150 650cfm carb, MAC 1 5/8 Long Tubes, Single Chamber Flowmasters, 91' T5 w/ Pro 5.0 shifter, Turbo Coupe 8.8 Rear w/ 3.55 gears, QA1 Motorsports tubular K member, no interior except steering wheel and seat. Coming soon: 6 or 8 point cage, Fuel Cell, Weld Draglites |
09-19-2003, 06:17 AM | #3 |
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Join Date: Aug 2000
Location: Milan, OH
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Autolite 103 or 104, depending on the heat range you like. I've also run Autolite AR474 for a short-tip, side electrode plug if you've got plug to piston clearance issues like I did. These are two heat ranges colder than a 103 though so they're best for a high compression race engine.
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Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!" |
09-19-2003, 10:16 PM | #4 |
I'd rather be basketweaving
Join Date: Feb 2000
Location: Indianapolis
Posts: 2,551
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Autolite 104 is what I run in mine. Can't beat the price, or the fact that you can pick them up at walmart.
I'll be putting 103's in it when I grow the balls to put the nitrous back on it.
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NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft |
09-19-2003, 10:34 PM | #5 |
Get down.....
Join Date: Apr 2001
Location: Room 103
Posts: 2,095
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Cobra brakes are on! Finally..... ------------------------------------------------ |
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