What Plugs to use???
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Junior Member
Joined: May 2005
Posts: 40
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From: TEXAS
Car: 1989 firebird/91 tpi formula
Engine: 327 small block/305 tpi
Transmission: 700 R4
Axle/Gears: superior axles/3.42's
What Plugs to use???
Just curious what plugs everybody's using or whats best for an LB9. I was running R45 ac delco's and the car seemed slow under 2800 rpm. Swithed to a set of rapid fires and picked up some bottom end but it just does'nt rev as fast as it used to.
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From: Macedonia ,OH
Car: Formula
Engine: 6.0 LSX
Transmission: 4L60E
Axle/Gears: 9 Bolt 3:27
Eather your old plugs were horrible or something , but rapid fires are not going to give you an extra advantage. If so, everybody here would run them. Basically most use stock AC's like myself.
Member
Joined: May 2005
Posts: 184
Likes: 1
Car: 1991 Z28 w/G92
Engine: 5.7 TPI
Transmission: 700R4
I currently have the standard AC plugs, but considering the chore to change them it might be worth thinking about platinum plugs. No expectation of a performance gain, just longer life....
I've also had good results with Autolite plugs.
I've also had good results with Autolite plugs.
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