I've bought several sets of these & think they're a great sparkplug wire . They are 60% off. Example : Custom 6 cyl Jeep SPIRAL CORE 8mm = $16 - free shipping - no "handling" charge. 8.5 = $20. Check the specs at the site.
Maybe TR will test'm for us. No affiliation.
Everyone has a photographic memory. Some just don't have film.