[Eric in the Ozarks]

I owned 4 Jaguars in my misspent youth. They all ran great after I figured out how to solve their very similar problems. Delco made several electrical parts that were interchangeable with Joe Lucas. Mallory made a first rate distributor that was 100 times better than OEM.

[Neidermeyer]

Eric has it right ,, Jaguar bought most of it’s electronics in the 80’s&90’s from Delco ,, in many cases you can peel off the Lucas stickers and find a Delco sticker underneath.. once you figure out the interchange you can keep a Jag running nice on the cheap... The biggest problem was/is poor wiring , especially grounds causing electronic components to burn up... The V12 used 2 seperate distributorless 6cyl GM ignitions as it was a cheaper and more reliable system...