i've done much searching and read many opinions.. anyone out there give me a solid answer (no opinions pls) or links?

i'm planning on running 42 to 45 psi (OEM regulator), RC 550s, and up to as much as 350 HP. it's my daily driver, and i put a butt-load of miles on my car, so i want things nice & quiet in my cab (so no 255lph suggestions..pls). i have a del sol, so the pump sits right behind me..

i'm boosting and will be running a 3" exhaust with a turbo muffler (to that end) with an e-cutout for when i get on it..

 

Well i think that the stock pump is good to like 250-270 i have heard and thats only a 90LPH. so i am sure that the 190 is good to over 400...Just a thought