Flooding issue. This set up ok?

[Mack B]

This is long and pointless but I want to give as much info/back ground as possible.

>283
>rebuilt 500 cfm edelbrock carburetor
>flooding after engine is turned off
>has spacer under carb
>has mechanical pump
>has regulator set to 5.5

My trouble started last year here http://67-72chevytrucks.com/vboard/s...=752317&page=2

I rectified this by temporarily installing a fuel tank in the bed, complete new fuel lines, cleaned the new pump, new filter cleaned/rebuilt carburetor.

Had ongoing issues with the carburetor. Engine dying under load and just poor drivability I decided in the interest of my sanity and possibly better performance and economy I would buy a rebuilt 500 cfm edelbrock to replace the 600 (this is on a 283).

Carb is supposedly dyno tested before being sent out and for warranty purposes has dabs of paint to tell on me if I open it up or make external adjustments. Right out the box the truck smoked horribly and barely ran. I had to adjust the mixture screws, the idle screw and the choke wouldn't engage the fast idle cam. I really have my doubts it was tested.

I make a few small trips uneventful, then comes the fateful day I have to push the truck through the car rider line at school. Both embarrassing and taxing. F@krs heavy. It had flooded as I pulled in, gas was pouring out of the throttle shafts. I assumed a float stuck, tapped it with my purse and eventually got it started. Drove it around uneventful for a while after that (all short trips).

Yesterday in traffic I notice the idle is getting rougher than normal like it's loading up, I tap the trottle to clear it and all seems fine. I get where I'm going no more issues till I start to leave. It's flooded. Hold the throttle to the floor and it cranks up, I get it home and park it. Come back later find it flooded again. After the truck sits a while it floods otherwise it starts fine.

Likely I need to open up my new to me carburetor of questionable rebuiltness, but first I need to ask if the fuel cell in the bed is contributing to this. The top of the tank itself is probably right at level with the carburetor base but the loop of rubber hose is likely as high as or higher than the carburetor (upon this realization I lowered it as much as possible in this current configuration) could this be pushing gas into the carb after the motor stops? Or would the bottom of the tank have to be higher than the carb for that to be a concern? This is all suppose to be temporary so I could enjoy the truck before pulling the bed for suspension/ fuel tank work.

Pics of tank and of carb setup:
One of those lines is a vent line.
System is not rubber line the whole way despite what these pictures would have you believe. Short section at tank, at pump and at fuel filter is all. (Unrelated but I know someone was gonna tell me it's dangerous)

Thanks for reading!