Originally Posted by
fulcrum2
Really? The C7TGF were always (and are still) black with a gold tip. The C7TF (without the "G") had a silver body and mine had also silver tips. However, I had a lot of issues with C7TGF (black with gold tip). Never sucked a wire through the engine, but some were not glowing bright enough (impossible to tune engine) or died after the run (could not start for the next run).
I was thinking that this could also come from using a heat gun to warm up the engine (pointing at the plug), but my buddys use it as well and donīt have issues with the plugs...
I will post a picture of the silver plugs with gold tip. They are C7TGF I have a bunch of them I will never use. I think I may send them back to Nova. I do not want to sell them to my customers knowing they are bad.
