by running a 1" spacer under the intake manifold and a custom fuel rail setup, you can run a new style turbo.
it can be done with stock fueling system. but i think you have to bend the pipes a bit.
here is a picture of my engine with spacers and a VF37 front entry turbo. i now have a silicone inlet adapter on it. fits/looks a little better.
i made mine but, this is the only place i know to buy them