212 predator spark plug gap

RCB19

New Member
#1
Just curious as to what you guys and some of the engine builders are gapping the spark plug at. I know the stock engine manual calls for .027-.031 but that seems kind of narrow. I have the non hemi engine with arc flywheel, +.20 rod, Isky Mamba Jr cam, stock head but fitted with stock size stainless valves, stock size Ruxing carb rejetted, filter and header. Going to use the NGK BP6ES plug which comes out of the box at .035. Thought that maybe since the ARC flywheel has much stronger magnets the gap may be increased. Any info with your experiences will be appreciated.
 
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