Just so you know, its 88kw for an ADM bigport 4age (and later aw11's with afm). JDM were 96kw for a bigport. All the diff was the ecu (one is tuned for higher octane petrol).
A smallport is newer, has 7rib block and slightly higher compression. In many ways its similar to a gze, just the pistons are forged and lower comp on a gze.
IMO a fresh bigport vs a fresh smallport will not have much in it, nor will you notice the difference. The power levels could easily be altered with simple bolt ons. Who knows, the 100kw quoted engine power output could have been achieved by a better exhaust design, could easily make up that 4kw.