I am having issues with the 500 inch 6 pack motor I have in my charger. It is a fresh build and I can not get it to idle below 1000 as we are bottomed out on the idle adjustment at that level. I do not have an idle solenoid hooked up just yet as it is on order but would that help with idle speed or just run on? I put a vaccum gauge on it and it has between 9-11 of vaccum at idle. The car seems very very sluggish and does not seem to pull hard at all. If I roll it out in first and hit it around 10 mph it will give a quick bog and them go but not like it should for the build.
I have set the fuel levels, adjusted idle mixture and the timing is set at 6 initial and then the vaccum is hooked up to advance( I know it is a little lower level but that is so it does not run on when shut off as we had issues with that at any higher level). Anyone have any ideas? It seems very flat and will almost die when it idles down to turn a corner. I have not checked the powervalve but I have a 5.5 ordered to swap out.

Here are the engine specs:
500 inch
9.6 comp
stealth heads
comp cams .564 lift duration 251 intake 257 exhaust @.50
1 3/4 headers
brand new remanufactured carbs
stock aluminum 69.5 intake
auto with 2800 stall
3.55 gears
power brakes


Any help needed!!