Thread: PLUG GAP
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Old 08-27-2010, 09:15 AM
  #10  
zipper06
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RACING JUNKIE
 
Join Date: Jan 2006
Location: La.
Posts: 2,890
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I think the 7's are more of a street application on pump gas. i run NGK 8's in my 377" on alcohol, and we run ES8's with a pump gas 468 b/blk shooting 200 shot of nitrous. I run NGK 9's in my blown alcohol sm/blk. I think the 8's would be better for your engine.

JMO

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