fuel system woes

[hw612]

i bought my car supercharged running anywhere from 5 to 9lbs of boost, depending on belt condition and alignment of starts and moon.
anyways i have a walbro 255 and im running about 45psi at idle which according to my narrow band is pretty rich. at whatever my max boost is that day it sits at 100psi which maxes out my guage so maybe more? also the narrow band says its rich through boost. ive been going through fuel pumps this is my second bad one since i got the car in april. im thinking this extra psi throughout idle and boost is the reason why im killing fuel pumps as they simply cant keep up. so im wondering first how do i find out what FMU i have and what one i need to make my car run a little bit better. i have a wideband i might install but what numbers should i be looking for?

[KOOTER]

1. narrow band is worthless for telling you if your safe in boost or not.

2. FMU is a bandaid from the past that should be left in the past (get it properly tuned).

3. dyno is the best way to see if your going to blow your shit up and fix it before it actually blows up.

[hw612]

sooo i would need a megasquirt and sheit? and what is a ballpark price to get a fuel system done?
if everything goes well ill be putting a SR in the car this winter so im not looking to put a ton of money into the m42.

[KOOTER]

Supercharged E30? I would run a haltech sprint 500 or we can do a custom chip tune for you. What engine do you have?