better to swap to a T2 block. you can pick up a decent long block for $800-$1000 mostly. T2 tranny's can be found for around $200 if you want that beefier tranny. you can use an N/A tranny too though. do some research before you decide. there is a good N/A turbo right up on another site (I'm not sure if I can mention it here
). I personally would get a T2 block minus the manifolds and get the turbo/manifolds you want and do it that way. I just don't trust the N/A's under boost especially if you are going higher then stock T2. my 2 cents.