Mike,
Hmm, according to a Dayton example, you may have a wrong one but ... it is not visible (not much) anyway
I think you have the right wireing done, my ignition wires are too thin but, it is what it is
I plan to do a tamiya bubbletop with Gabby's markings and thi s one I will try to be perfect. I do have 3 Thunderbolts (almost), fourth will be Gabby's last TBolt and I have to find one more - a NMF just to get a full line of colors - total of 5 Thunderbolts