Over the years i've figured out the vortec pump (1996 chevy truck 350) is the only thing to use in TBI's.
Not sure what the deal is,but the stock tbi pumps just always have issues untill swapped with a higher pressure/volume vortec.
that's assuming you can use an intank pump.
if not,and you use a frame mount pump just make sure you don't wire it to come on with the key.
the cheaper ones (mr.gasket) will last just a few months being deadheaded.
the regulator is built into the TBI unit and will bypass the excess fuel just fine imo,or you can mod it to be adjustable.