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Which plug w/my set-up?

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Old Feb 24, 2002 | 07:18 PM
  #1  
IROCZ4BD3's Avatar
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From: Oaks,Pa
Car: 89 IROC
Engine: 350 HSR
Transmission: modified 700R4
Axle/Gears: 3.42
Which plug w/my set-up?

I'm currently using stock ACDelco's cut-back & gapped .040.
a friend suggested that I try the ACDelco rapidfires.What does anyone think.
BD3
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Old Feb 24, 2002 | 07:21 PM
  #2  
86TpiTransAm's Avatar
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Joined: Dec 2000
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From: Springfield, MO, USA
Car: 1986 Trans Am, 1991 Firebird
Engine: 355 TPI, 3.1L V6
Transmission: 700R4 in both
Don't waste you money, plain and simple. I strayed away from Delcos regular plugs one time and was very disappointed with the half life I got from them. The stock Delcos work well on anything, don't mess with that other junk.
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Old Feb 24, 2002 | 08:25 PM
  #3  
89BlueTA's Avatar
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From: Tecumseh,Mi,USA
i would stick with what you have maybe open up the gap a little more, .045-.050., The only plug other than what you have is the NGK plugs, I like those.

nick
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Old Feb 24, 2002 | 10:06 PM
  #4  
88blkiroc's Avatar
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From: Orland Park, IL, USA
Car: 88 IROC-Z
Engine: L98
Transmission: TH350
Axle/Gears: 3.45
stay with the stock delcos. Rapidfires, splitfires, bosch 4+ and all that other crap is just that, crap. your not gona get any extra HP or performance. Only plugs that might be worth it are NGK Iridium's, but for most people the price outweighs the benefits.
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