I found a topic on the cougar board about a guy in Indiana modifying a turbo kit for a Focus and installing it on his zetec/mtx cougar. He runs low 12's!
According to the post the guy spent upwards of 20K in engine and tranny mods. Thats a lot of cash, I hope the engine holds together fo r him. Nice to see the Zetec kick a little booty! I feel sorry for the V8 powerplants having there ass handed to them!
the sca turbo kit would be a good place to start but also work in an intercooler. The intercooler is what takes the avg sca kit into killer performance.