Rough Running w/ Dual Carbs, And now low fuel pressure too. Options

[Craigers17]

So I've been trying to track down a rough running issue with my 2056 w/ dual 40IDF's. It has not been running well for several months, and has had spells of sitting for a while. When these issues started, probably 9 months ago now, I changed out the old fuel filter and relocated the pump and filter to the front and upgraded both to the type that Tangerine sells. I also took that opportunity to install a stainless steel line and all new rubber lines. (the problem existed BEFORE I did all of this)

Recently, in the last week or so, I replaced both manifold and carb gaskets. I haven't actually opened up the carbs yet, but have cleaned all the jets. After this work, I had it running great for about a quarter mile, and then started backfiring and bogging down. I have a fuel gauge and also noticed that it is now only reading about 1.25 to 1.5. It normallly sits around 3 consistently. I suspected maybe I had a fuel line that was kinked under the tank, so I pulled it and they are fine with no leaks.

I am thinking that the fuel filter may be clogged after having sat dormant for so long, OR, I might have some clogging going on in either my fuel "T" splitting the carbs or in the "T" that contains the gauge. My only other guess is that something is going on with the floats. I know this post is a lot, but if anyone has any ideas, please feel free to chime in. Thanks!

[Craigers17]

So last time I posted, I had a suspicion that my fuel pump or filter were not working correctly, as my pressure was dropping and the car was bogging down. I SHOULD HAVE stuck to my gut and started troubleshooting the pump first. That said, I wanted to maintenance the inside of these carbs because I had never opened them.

I took them both off today, dissembled most of the important parts, cleaned out the all the jets and circuits as best as possible and added new gaskets. I did find some junk in both bowls and I've tried to include some pics. Also, I have never adjusted the floats, so I adjusted them "closed" at roughly 12mm and "open" at between 23 & 25. The floats themselves looked great, but they were probably at around 6-8mm at the closed setting. Not sure how much difference that makes or if anybody has different numbers to shoot for?

Anyways, put it all back together and car won't start at all now. I didn't have time to troubleshoot much after that, but it doesn't look like it's getting much, if any fuel....leading me back to my original suspicion. That said, I feel better about the carbs having been cleaned and floats adjusted.

In the next day or so I'll check the flow to the "t" and get some voltage measurements to the pump. I do hear the pump kick on, but it doesn't sound as loud as normal.