Be careful about running too little fuel pressure. The injectors need a certain amount of pressure to form a good spray pattern. With too little pressure, the pattern isn't full and you'll actually wind up with a dribble to the spray.
With your mods, I'd try running stock pressure or maybe something like 42# to begin with and do a little testing to see what works best.
Why the triple springs? They're probably costing you some HP. I've run doubles on my T/S combination, and have considered going back to singles w/ damper to try and reduce the parasitic losses in the valvetrain. Triples are overkill, especially on a most stock motor that's limited to 6250rpm by the computer. Just food for thought.
------------------
Jeff Chambers
Trophy Stock #3
11.97 Seconds / 114.5 MPH
Chambers Racing Team