For the intake use a gasser manifold, preferably the one from the g60 corrado and an adaptor like this: http://www.bahnbrenner.com/vw_audi/products/1949/MkII_T_Body_Adaptor_to_3or diy and then plumb from there. I like to use junkyard intercooler tubes and such because they're cheap and you can find bends that fit nicely.