16v's are still very hard to get to 200 hp....my buddy has a built 16v motor: bored .20 over, Toda 82mm 11.3.1 CR pistons/forged rods/bearings/flywheel, TRD 272/264 cams/floater crank, head was rebuilt, ported, gasket matched and 5 angle valve job w/ kamikaze 9500rpm valves and springs, custom Dream Speed intake manifold, K&N intake,2.25" catless exhaust from stock header (its better than most aftermarket options). larger 330 injectors on stock modified rail w/alternate fuel pump, and custom Megasquirt ecu it put down 171whp@9300rpm/[email protected] a complete rocket and scary as hell to drive for such a light NA car...but 200 for him is pretty lofty. he's started on 7agze hybrid now thats a 7af 1.8l celica motor and the 4ag combined with the SC14 blower from the Previa SC...that built with ab 13-15lbs boost will put him in the 200 whp range pretty easily