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Charlie ny · 06-07-2021, 11:13 AM

Guys,
I'm running Autolite 216's in my 286. Under sustained highway driving
I think the 216's are breaking down, the motor begins to run rough. The rough

running gives the effect similar to a wheel out of balance. All plugs are a reddish brown...the motor runs an L100 cam, lots of comp and a Stromberg
48 with # 50 jets. I've always preferred Autolites but I'm open to suggestions. The Autolite tech guy was no help.
Charlie ny

06-07-2021, 11:13 AM	#1
Charlie ny BANNED Join Date: May 2010 Posts: 3,019	spark plug recommendation Guys, I'm running Autolite 216's in my 286. Under sustained highway driving I think the 216's are breaking down, the motor begins to run rough. The rough running gives the effect similar to a wheel out of balance. All plugs are a reddish brown...the motor runs an L100 cam, lots of comp and a Stromberg 48 with # 50 jets. I've always preferred Autolites but I'm open to suggestions. The Autolite tech guy was no help. Charlie ny