Booyah, sorry took so long to get back. My speedo and tach are both mechanical.
I also located an interested fuel leak. It's the return line that hugs the side of the block coming from the IP. It goes into a 90, follows the block a foot then turns to hard line, continues to rear of engine where it hits a T to the injectors, then rubber hose to the tank. The rubber was leaking under the clamp holding it to the block.
The interesting part is, the fitting where it goes from rubber to metal hardline has a small orifice, rather than a hardline-sized opening! We took it to NAPA, they looked very confused and wished us luck. Why the small orifice?? To intentionally cause backpressure on the IP? Anyone got a part# for this piece of hose?? Thanks in advance!!