I am on managment of company that does everything Mitsubishi Evo and Subaru from building rallycars, through mapping them to simple servicing of road cars. So I know a bit or I know who to ask. Ford Cosworth stuff though is extremely exotic here in Poland so I have trouble with just about everything that seems common knowledge in the UK even for people who normally don't deal with Fords.
If you need to know something avout Subaru running gear or other mechanical componentsa I should be able to help. I know some of the best people who work on those cars in the UK as well