I know a guy that does motors (un-assembled), and I'm thinking of picking one up for the black fox. It makes mad amounts of power, he wants V$4,000 usually, but he said he'll give me one for V$3,000. He does coyotes, the motor can make in the 1000's. Then the owner decides what power adder they want. Like I said, he sells to motors in pieces, but I have done lots of work on ford motors, so it should be a piece of cake.
Added 24 minutes later:
The motors also come with a 5000hp rated torque converter, 5000hp rated flywheel, and a built powerglide with a transbrake. I have to buy my own driveshaft (it will most likely be carbon fiber) and rear end. I want to buy a rear end from quick performance, they are not too far from my house, and they sell Ford 9 inches with spools, rated for a TON of power.