Not heard very good things about wallace performnce matey and they dont really specialise in fords. They do jap & vauxhalls
AVA are meant to be good with fordies.
I personally take mine down to MSD in blackpool. Bit of a trek but worth the extra few hours travel for the best
They dont have 4x4 rolling roads.
You dont need that though. MSD take your car out in live road conditions.
Where do you stay ?