rrelco
08-31-2018, 12:53 PM
EFI guys not sure if this is a issue but I'd thought I would ask. so my elco has a 383 with efi the first efi was Mass-flo, I got rid of that for a more user friendly tuning software holley efi hp series. well my question is the old EFI (mass-flo) then I shut down the engine the fuel pressure gauge would still hold pressure. but as soon as I went with holley it now bleeds down instantly. didn't know if that is the issue as I seem to have hesitation issues so was wondering if the pressure drop means my regulator could be going bad!