SPARK Plug Gap

02-09-2009, 10:09 PM

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SPARK Plug Gap

What is the correct gap for spark plugs for ATI DISC supercharged LS1 347 at 6-8 lbs of boost on 91 octane.

I've lost my notes.

02-10-2009, 04:40 AM

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.035 and we use NGK TR6 pn# 4177 spark plugs. Bob

02-10-2009, 07:53 AM

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I've been running .032" for seven years on Autolite 104s.