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Rob Petrie E395 · 02-10-2015, 09:57 PM

IF you go over to Yellow Bullet. In the naturally aspirated section they have a sticky at the top of the thread listings. One of them is a spark plug heat range chart. It includes the Autolite Champion and NGK Plugs in it.

02-10-2015, 09:57 PM	#7
Rob Petrie E395 VIP Member Join Date: Dec 2007 Location: Woodlawn IL Posts: 1,093 Likes: 162 Liked 220 Times in 79 Posts	Re: Autolite AR SPARK PLUG HEAT RANGE CHART IF you go over to Yellow Bullet. In the naturally aspirated section they have a sticky at the top of the thread listings. One of them is a spark plug heat range chart. It includes the Autolite Champion and NGK Plugs in it.