Anyone ever use the Ac Delco Rapid Fire Plugs?
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Senior Member
Joined: Jun 2001
Posts: 562
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From: New Port Richey, Florida, USA
Car: 1989 Pontiac GTA Hardtop.
Engine: ZZ4 - 350
Transmission: Garbage
Anyone ever use the Ac Delco Rapid Fire Plugs?
I just bought a set of these, they cost almost 4 dollars a piece, I was just wondering if anyone else has used them, and what your opinions where on them. Did you notice any power difference, better mileage etc?
Thanks
Mike
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Smokin 1989 GTA- Bone stock except for exhaust. (no catalytic-stainless pipe into Flowmaster 2 chamber.
I've got them on my car. Being as it's a stock engine, they were really a waste of money. But, almost 1 year later, they're still good. If I cared to change plugs again (no!) I would get regular Delco's or Autolites.
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--Steve S--
1984 Trans Am 305 LG4, 5 speed Daily Driver, Flowmaster 80 Series
Holley 600 cfm & vacuum advance
Soon: Edlebrock Intake & TES
------------------
--Steve S--
1984 Trans Am 305 LG4, 5 speed Daily Driver, Flowmaster 80 Series
Holley 600 cfm & vacuum advance
Soon: Edlebrock Intake & TES
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Joined: Feb 2000
Posts: 7,964
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From: Norfolk, VA. USA
Car: 86 Trans Am, 88 Formula
Engine: 95LT4, 305TPI
Transmission: T56, T5
I used them on my 86 carbed T/A. Only thing I noticed was a lighter wallet.
I just use the regular AC Delco's that are a buck a piece.
High Speed Run: 157mph
Best 1/4 mile run: 14.94@91.67mph
WS6 Trans Am.
View My Ride @ thirdgen.org
I just use the regular AC Delco's that are a buck a piece.
High Speed Run: 157mph
Best 1/4 mile run: 14.94@91.67mph
WS6 Trans Am.
View My Ride @ thirdgen.org
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