383 dual quads lean at idle and cruise

Put the intake back on with 1 inch open spacers. Went and drove it after setting everything. Same thing. Above 28-3000 everything
Ever consider You've got a low-speed ignition misfire? If there's a carbon track in the cap near 1-3-5-or7, and the rotor tip is in proximity moreso closer to base timing, it could be jumping past the tower post. Misfire shows up lean, lots of unburned fuel, may pop &/or act like it's flooding. Is it an erratic misfire?
Otherwise, how did the intake gaskets appear? It does sound like a Dr.side vacuum leak, or plugged idle circuit, but these are some other things to check out.
Peace.
its not a hard miss you can just tell it’s not happy. Gaskets are all good. I’ve replaced them every time I’ve had it apart just to be sure have sprayed and checked for leaks. The thing is it doesn’t do it with the single carb Weiand 8008 intake. I have ran it and swapped both carbs to it to eliminate a carb issure