Got this and don't really know what I have. Maybe a 650HP NA fuel pump? Anyone recognize the design? Weldon brand. When I apply 12v it will almost jump off the table.
looking at their web site it looks like a j series pump ...maybe. they run on 12 or 28 volts. they are versatile little pumps. i can see why it almost jumped off the table when you powered it up
Got reply from weldon. It's a pump....mainly suited for aircraft: 45GPH (min) at 60psi. @13.5V. Relief set at 175psi. It could work for efi at rail regulated 48psi.