Problem with Holley 4 bbl

Dart_68,
A lot of things are not adding up.....
Only 5" of idle vacuum, & you want it to idle at 700 rpm? I doubt that will happen.
If the low vacuum is from a long duration cam, hard to believe that both pri & sec t/blades are almost closed, because the engine should need a lot of bypass air for it to idle. The engine gets this air from opening the t/blades further, drilling t/blades, etc.
Do you know the cam specs & comp ratio?