85 iroc z28 vortec heads lunati voodoo cam gm mid rise intake recently replaced valve springs valve seals locks retainers push rods intake gaskets carb gasket distributor gasket car sounds good over all but for some reason cant get it to idle smooth vaccume gauge bounces between 1 an 6 pretty eraticly on idle. When i rev the engine above 2200 rpm the vaccume smooths out an runs smooth as butter. I have no back firing no smoke out of the exhaust. Engine boucing around on idle an seems like it does not have 100% power when i step on the gas. Any advice would be helpful. Also forgot to mention it has a lunati 60105 cam

 

Any body have any idea??????