performance from a souped 350

[FUNMUDDER]

How good would a 67-72 chevy 3/4 ton 4x4 with a rebuilt, mildly souped up small-block 350 go? By mild, it would probably have a Edelbrock performer kit (carb, cam, intake and lifters), K&N air-filter, Chevy ram-horn exhaust manifolds go? They they claim the performer combo makes 320 hp and 382 ft. lbs of torque , which seems like an ideal kit for a truck, because the tests showed at 2,000 rpm, it makes around 345-350 ft.lbs of torque. Good for serious wheelin'. Does anyone on here run dual exhaust stacks right behind the cab, up through the bed floor? I am seriously considering having two stainless steel exhaust stacks right behind the cab and throught the bed, just to be different and to look cool.
-Jake