LEGENDS > Engine Care & Tuning

Best Spark Plug these days for sealed 1250

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NewLegendGuy:
What’s everyone using these days for Spark Plugs ?      Can I tune in any little bit of HP with  Plugs /Wires.    Air Filters ?     I sent the carbs off to be tuned and re jetted ..   Just looking for ideas    Any help is appreciated

justfreaky:
Take a look at this thread for spark plugs. http://www.legendsracer.com/index.php?topic=101.0
Not much has changed.

Steve

kgirard19:
We use Autolite AR4152 in the 1250's. We carry them on GoMotorsportsShop.com . Currently out of stock, but more are on the way.

RobMac72:
hi there...what plug gap folks use for NGK JR9C
thanks

justfreaky:
Between .030 and .035 seems to be the only answer you will find. I tend to run mine between .032 and .034. Keep an eye on your plugs for readings.

Steve

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