Welcome to the forum Hardy. Nice to have an XJ220 owner with us.
As you can imagine these cars are few and far between, I'm not sure how often other XJ220 owners are checking in here.
Have you contacted Don Law Racing on this subject? I guess you will need to be in touch with them sooner or later anyhow.
When you get a moment stop by our new members area ==>> New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum
Got any pictures of the car you could share?