Like the title states I’m having an issue not being able to even get close to desired pressure even on my tow tune. Truck has never had any issues besides me putting s built trans in it with triple disk converter. I even installed a industrial bag of parts kit and still max pressure is about 25k rail pressure at WOT. In my extreme tune and max tune it gets up to 25k and will bounce around 23-24 and will surge like I’m letting off. Just was wondering if anyone else was having an issue. Oh and I have even tried a rail plug to see if the relief was popping open.