Check with Mustang Parts Specialists (MPS) out of Winder, GA. They are on the internet and advertise in Muscle Mustangs & Fast Fords. They have a Mustang grave yard. I got my hydroboost, PS rack, and some other stuff off a t-boned '04 Mustang. Plus, I have used them in the past for Mustang stuff.
Another place is AMP - I think in Arizona??
Do a search on hydroboost and hydraboost - you'll find all kinds of info here. Also check the 4.6l fourm.
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