Will GM 200r4 work with factory floor shift location?

So if I understood correctly you are using a 340 manifold on the driver's side and a magnum truck manifold on the passenger. Would the magnum work on the driver's side or what is the reason for going with the 340 since you are using the mini starter? Also is the passenger side truck manifold the larger 2 1\8 version or the later 1 7\8? Thanks