4 vs. 8?

The problem is finding a turbo 4 cylinder donor car. If you get one it should be straight forward. If you decide on a V8 it would be cheaper to just trade in your car and get a 5.0 mustang. The ford 302 has alot more aftermarket support than a 2.3L and it will have alot more lowend torque. The 2.3L is good because it's light and is good if you want a car that handles (the whole idea behind the SVO mustang). If you go to www.racerwalsh.com they have alot of 2.3L performance parts and they're a really dependable company (i've had good experience with them). If i were you i'd try to find web sites with people who have done similar swaps because i don't think there's any "kit" you can buy to do it. another good site is www.kaufmannproducts.com. Good luck