Just keep in mind that the engine is going to torque in the engine bay, I was amazed at the amount of engine rotation, watching the video I made at the dyno the other day..
I have always been a big fan of v-8s and in a way... I .. can't believe.... I'm.. saying this.. but what about taking an SVT Focus engine and tranny and mounting in the engine bay then strapping in a jackson supercharger? Not sure of the weight difference, but that might be interesting. Some reports are saying about 230 HP at the crank but the torque is gonna be a little low at around 130.. so maybe its not really that great of an idea.