The '96-'98. 4 trucks (manual trans) are 215hp. The auto trucks from the same time frame have 180. The sought after 215 pump is the 913.
Are you going to go above 400hp eventually? If so, how far? You can make good power the 180 pumps also. Just takes a little more tweaking. IIRC, the Piers "stoopid pump" starts life as a 160 pump.
I'm in the neighborhood of 350-370hp as it sits right now. Have a set of 191 delivery valves to go in, once i get a socket for the holders. Also going to add a 3k GSK.