Plate engine plug

[Dirtmtrsports]

Seems like everyone including me has or does use the ar3910x plug in their engines which is apparently a very cold plug. Why not use a hotter plug? I've tried an ar3935 which works good. What about the ar3933x? Do they make a hotter x plug?

 

[OVALTECH1]

Believe it or not the 10x is the hotter of the x plugs. Use the AR3935 or an NGK - 7 or 8

 

[Chris Cooper]

IW24

 

[1fasttiller]

We use the NGK extended gap -7 plugs. Much better on a RICH plate engine. My Dover carbs will foul a 3910X real quick...

 

[Kart0023]

We use the autolite 3935 in our green plate and purple plate