what kind of turbo stuff do you want, if people want custom 4a manifolds i'll make em.
i have some left over mandrel bent aluminum from my 4agte. i
have soem ceramic coating left over. if you need turbos i can get decent prices on thos too, t28 bb vtr tested cartridges for 400 if their still available.
a friend of mine sells smt-6's for $450 shipped, great piggy back for a gte and a few mk1 mr2 peoples on mr2oc.com are using them succesfully(others are still getting them wired)

i had a hks ae86 manifold up to a few months ago, why dont more people use that? it was a really nice manifold. only $225 new

club4ag has some of the dumbest humans ive ever read. if you need general 4ag info go to the mk1 section of the www.mr2oc.com site and read through the faq's, all the different year engine specs are up including the difference in early late cams, which engines have the "gze" internals, etc.