there is nothing wrong with the MP turbos either. you can touch over 600hp with that turbo. and if you need more go with an S400.
i actually have one (MPT70) sitting here waiting for use. however i DID change up my combo a bit, i decided to use a cammed l03 instead of a built 350. with the 305 im aiming for 500hp @ 15-17psi.
edit: im actually using a bbs header also.
here it is mocked up on the 305 i pulled out:
its VERY close to the valve cover. bbs says a garret t-76 will physically fit, but i dunno! i mean its within a centimeter of the valve cover. (the compressor cover that is).
later today after i get the new 305 buttuned back up after the cam swap ill throw the entire set of shiny parts on it and take some pics.