i'm tellin you, you won't need 350hp to drift or have a fast daily driver. i'd say go with the s14 SR. all the s14 swaps we did at XAT ended up being fast as shit. granted you can't modify the s14 sr as much now but its time will come. i stock s14 swap should put down more than 210 to the wheels stock, possibly up to 220. set the boost at 15 and your above 250, which is enough for a low 13 quarter and plenty to drift. and its basically bullet proof.