What exhaust manifold is it set for? looks like neither 2wd or 4x4 how it is now, what manifold you gonna use JohnnyBravo? way I see it is that's plenty big enough for a mk2 except for drag racing but you should decide what it is- track or drag, can't really do both or you will end up with something that's not the best at either

If my turbo blew today I would put a t34 .48 on it as big power isn't all that after you've got used to it, after a while you just want smoothness and response well that's how I feel anyway