I am ordering my glow plugs for my non-tuned grp and I was looking at the o'donnell 99 plug. I know I want to try this plug but on the site I will get it from it says it is meant for 30% nitro. Does this mean it will not work with 20 or 25%? Also any other glow plug suggestions would be good.
you will be fine with that plug ...od plugs are good and they work good in the grp's ..i ran mine 2 weeks ago on 25% gen2 byrons with an od 97t works good lasts long time