03 Chevy 1500hd 6.0 4l80e. Crew cab 4x4
In the xdf there's a category labeled fuel injector lbs/.. the table shows the stock which was 25.xx. I have a flow matched set of 28lb injectors, question is can I put 28 in the table and then adjust fuel rail pressure at the rail? The truck ran with the Injectors on a stock OEM tune but would hit fuel cut off... It did idle fine just and load fuel trims would go to just about -30 and truck would fall on its face.. any help would be appreciated, thanks in advance.