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Autolite AR103 better than copper core 103s?

Macksauce

New member
looked around on here cant find it sooooooo......Does anyone on here run or have tryed the Autolite AR103? My GP has full built motor top&bottom, full stack intercooler, ported heads, xpz cam, 60lb injectors, hd trans, high ratio rockers, 3.0 pulley, devilsown meth, headers, etc etc.......is there any gains in them from the regular copper core 103s?
 


no but the cutback ground strap is one of the better ways to unshroud the spark kernel.

but it does lead to quick wear.

keep in mind youd be changing em more often
 


You can google it, but you are basically cutting back the electrode on the spark plug so it exposes the spark more. Some say it helps, some don't.
 


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