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Oct 25, 2007 | 06:13 PM

Black89TransAm

Thread Starter

Junior Member

Joined: Aug 2006

Posts: 41

Likes: 0

From: Va

Car: 89 Trans Am, 84 Firebird

Engine: 305 TBI

Transmission: 700 R4

plug

what brand of spark plugs do you guys reccommend?

Oct 25, 2007 | 06:40 PM

Stephen

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iTrader: (12)

Joined: Jul 1999

Posts: 12,212

Likes: 13

From: Bertram (outside Austin), TX

Car: 87 GTA

Engine: L98

Transmission: 700R4

Axle/Gears: Dana M78 3.27 posi

Re: plug

AC Delco People have tried Platinum, 3 tipped plugs, etc., but generally go back. ESPECIALLY the TTA & GNX guys. The boost makes others fail that much faster.

Oct 25, 2007 | 08:53 PM

xfactor200289

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iTrader: (10)

Joined: Nov 2005

Posts: 218

Likes: 0

From: buhler,ks.

Car: 1989 trans am

Engine: 402 ls

Transmission: TH350

Axle/Gears: 9inch 3.50 gear

Re: plug

I have good luck running the autolite racing plugs.

Oct 25, 2007 | 09:45 PM

MP81

Member

Joined: Jul 2007

Posts: 248

Likes: 0

From: Michigan

Car: 2007 Cobalt LT

Engine: M62'd 2.2L L61

Transmission: 4T45E 4-speed Automatic

Axle/Gears: Stock

Re: plug

I run AC Delcos, and have been told to buy those by a few people.

Oct 26, 2007 | 05:50 AM

89transam*pearl

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iTrader: (1)

Joined: Jun 2007

Posts: 318

Likes: 0

From: Halifax, N.S.

Car: 89 T/A

Engine: LB9

Transmission: W/C T-5

Axle/Gears: 10 bolt posi, 3.73 Richmond Gears

Re: plug

Ditto for me....the 305 seems to like the A/C Delco's best.

Oct 26, 2007 | 06:21 AM

1FastZ

Senior Member

Joined: Jul 2001

Posts: 667

Likes: 2

From: Louisville Kentucky U.S.A.

Car: 86 Iroc Z

Engine: 406

Transmission: 350 Turbo

Axle/Gears: 373

Re: plug

NGK

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