wont fit with turbos according to lextreme, so im guessing that pretty much kills any kind of long headers, and probably kills any ideas for a supercharger unless youre trying to cut a nice trench into the center of youre pretty hood. so unless youre lookin for a streetable n/a the biggest baddest v8 for any sc, in my opinion, is a 2uzfe(iron block, 2 bolt main, but can be converted to 4bolt, 4.7L) with 1uzfe 4.0l heads, VVTI is a personal preference, with a stroker crank... or a twin turbo supra straight six cuz those are practicly impossible to break... good luck!