(This is all based on research, none of it from first hand experiance, so please take it with a grain of salt.)
Do you have plans to get bigger injectors?
My reading indicates that a Super B Single is a great turbo for mild builds if you dont mind spending the money. From my reading this is your best bet. Super B Special will be too big, you wont like it unless you get much bigger injectors.
Another great options that saves you money is to get the 351CW from a 3rd gen common rail. Used they are less than $400.
If you want the fastest spool and dont mind doing a bit of fab work then you can get a 351VE from a 4th gen. These turbos have veriable geomitry on the exhaust housing and used are dirt cheap. Same compressor as a 351CW, both are good up to 50 PSI or so of boost if you have the injectors.