Hi Karl, you're in a select bunch there are only a handful of Roush charged cars. Both Nigel and I together with a few others on here have similar cars.
Another member (and former owner) on here Linden Cahill might be a good point of contact as he has done a lot of work on his this type of engine. Nigel has also arranged for his engine to be fitted and will have good info for you.
As Colin says you would be advised to become a full member here as there's a lot of V8 specific info which will be a huge help in keeping these cars on the road.
Ken