Yes, several. Mr Gasket, Carter, and a Holley. I tried a return line with a regulator as well. Tried 12v off a single battery too. Spent a lot of money. Purchased the replacement and 100% satisfied. IF you would like to cut cost, you can find the correct one on ebay. Look for the correct pressure and 24volt. Most are 8+psi, but you can find lower psi. I think one of mine is an Ingersol.
I did notice that when the fuel pressure was 8-9 psi there was a noticeable speed/power increase. As a matter of fact I drove several hundred miles <3mpg. I estimate at a lower pressure probably 6mpg, but I'm cresting hills at 25 mph that used to crest at 45. I'm not stretching the truth. I have witnesses!
Another thing: If you use an external fuel pump, there are 1 or 2 bleed off holes inside the original pump/filter housing inside the tank. These are on a fitting at the top and bottom if the 3/8 line between the pump and top of tank. Some of my pumps had 1, some had both. You will be really confused when your standing along side I-90 in the middle of South Dakota looking at the fuel line with your buddy and wondering why you had fuel just a few miles ago. Then fuel sprays all over, you hook up the line and the truck dies. Finally you decide to spend $40 on a red boat gas tank and strap it to the roof. Unfortunately you can only drive at night because you know what the state patrol will do when they see that. Solder them shut.
Any way, My 675 mile trip home took 3 months. I replaced and then rebuilt another 2 or 3 stock pumps before I gave in. Wasted an entire summer. Cannot believe we never burned the thing down. That is why I'm unreasonable when it comes to this topic.
