so your 4.0 has a "ton" of mods, but everything is stock? except the heads which are ported to flow into the stock manifold? you dont have a tune, on a dyno, to make use of the mods?
this all depends on the drivers, you all sound like tools, if your spelling is any indication of your driving talent. along with the fact your "brother" is one of those brian o'conner school of driving "i think any car i own will beat anything" types, i have serious doubts that you could 1; do this in a safe place 2; do this without crashing into each other. in a theoretical world cobalt ss with supercharged or the later turbocharged ecotec is going to rape you both. the svt is going to in turn rape you. 2.0 zetec puts out 170hp/145ftlbs tq, with a getrag six speed, and a better way to put the power to the ground with the engine being directly over the drive wheels. on top of making more hp then your 4.0 ohv over a longer rpm range, with more gears in which to use it the car also weighs less then your truck. good luck and dont kill anybody.