I am not interested in email questions, mainly because I probably don't know. I do not have a GT40. I have several turbo'd vehicles.
I sometimes get questions about fitting an Audi 01E for mid engine use, and I generally think that it is not strong enough to be durable. I *would* like a URL or email address to pass along to help people with these questions.
I also have an extensive web page about fuel octane improvement using Toluene - since most of my viewers are running turbo engines: