budlightnmyhand... Did you try to call Towerhobbies??? I'm sure they carry one of the plugs I mention earlier... It might not be on there website, but I'm sure they carry them... You can use a McCoy plug as well... The McCoy 59 is a hot plug... Not sure of the climate your running in right now.... But for 20% nitro, you'll be ok running it as well... If you're running 30% plus nitro, I would go with a warm to cold plug... Might take alittle longer to get it tuned, but the power a cold plug will give you using 30% nitro is like night and day...
RC_Alan