I don't know where you are located, but there is a guy here in Jax, FL that can definitely help you out. His name is Tony and has ran a big block (460 and 514) in most of his fox's. Go to http://www.hp-performance.com/
He is a great guy that loves tuning these cars and is always willing to give advice. He's ex-Navy search and rescue crewman and a lot of his business is with Active Duty Military here in Jax.
93 GT vert-.030 block, GT40x heads, E-cam
94 Explorer XLT-GT40P, 4R70W
81 F100-4.9 300
87 Buick GN-.030 block, 208/208, TE60, alky