I’m looking for spark plugs. Yes, the common answer is “look back in the archives” but we all know Autolite 2414’s, 2413’s, AG203’s, AG403’s, Denso W31EN’s and W34EN’s are non existent these days and those who have them aren’t letting them go or aren’t speaking up. The cross reference website is ambiguous when these plugs are looked up and is rather inaccurate for heat ranges and recessed/non recessed electrodes. I have a 119 TT75 on alcohol and a 116 Atomic Rotary on alcohol as well. What are VIABLE plugs that are still in production that will suite these motors for both cold and hot weather racing conditions?