Spark Plug Indexing

Jim Bailey · 01-14-2009, 06:48 PM

Randy, wide spark plug gaps went out with ignition points. With todays MSD's and most other manufacters electronics, there is no reason to run more than .025 gap. As a matter of fact, if your trying to run, say .040 - .050, close the gap down to .020 - .025, and you'll see a performance gain. At least that been my experience. ( and don't forget to have your plugs Cryo'd. - go kart trick! )

01-14-2009, 06:48 PM	#4
Jim Bailey Senior Member Join Date: Aug 2004 Posts: 674 Likes: 15 Liked 584 Times in 94 Posts	Re: Spark Plug Indexing Randy, wide spark plug gaps went out with ignition points. With todays MSD's and most other manufacters electronics, there is no reason to run more than .025 gap. As a matter of fact, if your trying to run, say .040 - .050, close the gap down to .020 - .025, and you'll see a performance gain. At least that been my experience. ( and don't forget to have your plugs Cryo'd. - go kart trick! )