Which Spark Plugs

Old 05-20-2009, 12:45 PM
  #1  
jreiley
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Default Which Spark Plugs

I havn't seen much discussion on proper spark plugs to use. I'm at a loss and I would appreciate some help. Car is blown bbc on gas. Ignition is a msd 6al. I also wonder if there is enough ignition for this engine.
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Old 05-25-2009, 11:43 PM
  #2  
cepx111
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Depends,

How much boost are you running?

I recommend NGK racing plugs.

A 6AL would probably surfice for the street with minimal boost but if your racing and stuffing it pretty hard, I'd go on up to the 7 series.

Cp
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Old 06-05-2009, 05:34 AM
  #3  
chevyfireball
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It depend on the engine build whether you need long reach or short reach. I found Autolite plugs to be the best design.
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