If your pump is boost referenced you should see a rise in pressure at WOT, I know I see mine go up about 10psi or so. Its kind of hard watching the gauge closely when your WOT though.
I think I'm getting somewhere aroung 55psi just driving normally. I'll see what it does tommorow and post back.

 

I sit at 50psi at idle, when I stomp it the gauge runs up to 62psi, this is on the 38# injectors. I figure if I can push 62psi on 38# injectors and most GMs are pushing 60 something psi on 24# injectors, my pump must be a little bigger or rated a little higher or whatever. I will definitely do the inline 255 pump, I just don't feel like messing with the Hobbs switch and wiring involved in the voltage booster set-up. Sigh.....

 

My last truck had a 6.0/Radix combo....once the new owner took it over and went to the next level he installed the booster on the inline.....He now has MASSIVE amounts of fuel.....

Install the booster on the inline.

 

Who are you? Some kind of supercharger expert now? LOL!
Where do most people install the inline pump? On the rail near the drivers door or what? I didn't get directions with it and I didn't see them on the Magnacharger website. Hook it up near the fuel filter? Got a link with directions?

P.S. Somebody Tell the mods to fix the @*$! smileys!

 

http://www.magnacharger.com/pdf/manu...SUV1999-02.pdf

starting at step 156

 

I guess I have to go back to step 130 and install the wiring harness as well huh? Sounds like a PITA but less work than a blown piston.