Im doing a turbo build(first one) I have a b20 bottom end,vtec head.Im looking to sleeve the bottom end(golden eagle) ,but i havent seen many b20 sleeved.Is there a problem with the b20? should i get a b18 bottom end instead?Im going for 575 to 650 hp.Im not a newbbie to engine builds just new to boost( N/A all my life) so i could get a lil help or insight on this..THANKS!!!