Hi , here is a link to Edelbrock and PDF file on the carbs ..
I would try fuel useing fuel stabelizer , I use it in my rods when i park them for long periods of time ... It may help .
Also you can call Edelbrock customer support for help and parts ordering
if needed. ( Dave ) runs customer support and Tech . ( Call early in morning for fastest service, as they get zillions of call every day and the wait can be a long one if you call in the middle of the day ......
Captain Virgil Hilts is spot on with his advice and tips !
I notice that the intake manifold looks like a hard core racing manifold ,
( Victor Series Manifolds (3500 to 8500+ rpm)
Single-plane, high-rise intakes designed for maximum race-winning power at higher engine speeds. Edelbrock engineers work in conjunction with leading engine builders from all forms of competition to design manifolds compatible with the latest technology. Victor manifolds are available for single or multiple carburetor set-ups. See individual listings for complete information.)
You would do well to change it out someday to a Edelbrock perfomer
series intake manifold . The perfomer manifolds work much better for street rods and low end driveability than those "air-gap" drag racing manifolds.... ( Just a thought ) ....
At the moment, that manifold has nothing to do what-so-ever, with your carb problem ...
If it was running good when you parked it , and has been just sitting for a long time, then my best guess is, that it is a case of bad gas , from the car just sitting in storage ....
If you have a fuel drain in the fuel line, I would try draining out the old gas then, I would try adding Chevron 92 octane gas ,and drive it and see if that dosen't clear it up ? ...
http://www.edelbrock.com/automotive_new/mc/carbs_acc/carbs_access_main.shtml Good luck with it ....
I hope some of these ideas help.
Regards,
Bob/ CHECKERS