hrmm, standard engine? yes you will have to get used to it. unless you replace the pistons. you have got ring flutter. very common on engines with "factory ring gaps"
unfortunatly not much you can do. just get a custom catch can made that drains back to the sump.
no matter what oil you use it will come out. have you checked the compression latly? doesnt take much to crack a ring land on the initial tune following the mods.
also, check the turbo. i have seen worn bearings in them alow boost to leak past the compressor wheel and presurise the sump..
(happenend to me, filled the can in 5 mins up the old road once)