I finally had a chance to put the 392 pump on yesterday. I didn't have enough time to drop the tank and put in a new fuel pick up so I installed it as a temporary pusher.

The original plan was to pull fuel through the dead stock pump but that didn't work. I don't know if the vanes in the in tank pump were aligned in such a way that the path was blocked but the Walbro couldn't build more than 1 psi. I had to put power back to the stock lift pump or the Walbro wouldn't get fuel. I had a bunch of extra 3/8 fuel line that I used to plumb the new pump directly to the filter housing. This by passed the fuel block they used to replace the old block mounted lift pump and eliminated 2 banjo's, I'm sure this will help the flow. I also used 3/8's for the return that I tee'd in between a tapped banjo on the VP input line and the stock return line.

With this set up I'm Idling at 12psi and WOT is 7.5psi. This isn't what I want in the end but it's better than 7psi idle and 0 WOT. The first thing I'm going to do is replace the 3/8's return line with 5/16's. That should bring up the pressure a little.

Part II will be pulling the in tank module out and putting in a separate fuel pick up. I'm not going to keep the in tank pump for redundancy. That piece of junk is going in the trash. I'll keep a cheapo pump around for an emergency spare.