2 weird (minor) problems

[megaladon6]

i have a holley 4175 (i know it's crap, but i have no money) and it has 2 problems. first, the idle adjustment is leaned out almost all the way. if i turn the screws 1/8-1/4 of the way in (to the stops) the engine dies. the idle speed is good (the speed screw is almost all the way out). the engine runs great, i would just like some tuning leeway.
second thing isn't so much a problem-just weird. after the car sits for a day or two, the fuel filter before the carb is dry and it takes about 20-30sec before i get fuel. i do get fuel from the squirters before cranking.
just looking for some ideas on what it could be.
i tried this question over at the g-body forum and got into an arguement with a guy who refuses to accept that my carb has a forward idle adjustment. please take my word for it (i've confirmed it about 12 times) i do have a forward adjustment not the emissions biased reverse adj.

thanks for your help.