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Message: [QUOTE="lincolnlocker, post: 1559577, member: 944"] Its the same regulator as they usenin the "regulated return " conversion kits for any 7.3 powerstroke. This particular one will regulate from 0-140psi.. Right now, i have a ball valve plumbed into the return lines to prove what i want to do could be done. I can have 0psi to whatever the pump will dead head at. Could totally use the ball valve but it doesn't regulate properly while running because the aftermarket regulator is set with a diaphragm and spring pressure that keeps pressure constantly at the desired set pressure. Ball valves dont move so it drops close to 15psi wot. Should hold a more steady pressure with a 2-4psi variance wot with the aftermarket regulator. 62psi is optimum pressure for a 7.3 injector. You can literally hear the engine change tone when cracking the ball valve open more and more up to 65psi then after that no change and thats when i found the geyser issue on the aftermarket fuel filter cap. Lol Do you guys want pictures of what i did or do? Disclaimer, this is a bone stock truck.. not sure how well it will work on bigger injectors. It basically is turning into the exact setup.i had on whitey. That had 170/100s and track times put it at 450-460hp with zero pressure drop. I mean, i dont know why not. Im still kinda confused as to what is different between the obs oem filter and superduty oem filter because i still used the factory filters and fuel bowl on whitey with zero leaks around the cap. Lol Maybe because this doesn't have the oem cap and has the aftermarket filter that comes with the cap attached???? I honestly think that is where the issue is. Im guessing that the factory cap is way stiffer to allow the clamping force. But, at the same time, this billet cap has a nut on it that wont strip out or give the young lady any issues when needing to change filters. [/QUOTE]