i have a 99 gmc sierra 2500 2wd 6.0L lq4 (NBS) looking at getting a jegs version of a FItech 70076 intake with a 92mm throttle body. i have 2007+ tahoe decapped injectors and other mods like cam and dual valve springs and 241 ls1 heads.
how would i retrofit that to my fuel system since i have a return style fuel sytem. will upgrade pump to the holley 510-12-952 on jegs.
this intake needs a returnless fuel system and im not trying to redo the whole system if it can be avoided and will be willing to cut out any evap as need.

fuel pump: https://www.jegs.com/i/Holley/510/12-952/10002/-1
intake: https://www.jegs.com/i/JEGS/555/513050K/10002/-1

 

Decapped injectors are straight garbage, don't even run those. If you do, good luck trying to tune them. Find some stock 33lb/hr flex fuel injectors or anything larger than the stock 25lb/hr injectors that come in a 6.0.

That fuel rail on that intake looks like you can remove the cap on the passenger side fuel rail. All you'd need is another fitting, then a fuel pressure regulator and hose that connects back to the stock return line.

 

I wouldnt call that Jegs intake an upgrade over what you have unless you only care about 6500rpm+ performance.

 

return fuel system better in everyway possible over a returnless. Just my 0.02