If your going for speed go for a 5.0. There are just so much more you can go for less. I've messed with both. The SOHC is much more compfy, but for speed.... The DOHC is a little different, but if you are planning on building it (really building it), expect to drop some cash. It really depends on what your objectives are.
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'97 Cobra, K&N, Flowmaster, subframes, 4.10 gears, Steeda Tri-Ax shifter, Steeda G-Trac 3, Cobra R wheels w/ Goodyear F1s
My Ride