i have a built motor and turbo goign in today hopefully weather permitting. but froma cash standpoint. buy another d16 block. jsut a bare block, build it up (do some research on this, i would reccommend golden eagle sleeves and your preference of forged internals. and then get some ferrerra valves for your head and some upgrading on that. swap your blocks out and redo your head and put it on there. then boost the heck outta it. tuning helps a lot.