Holley Street Avenger 570 Idling Problems

check your fuel pressure , I have been fighting a problem with my Holley for a year now , finally got a pressure gauge on it and found the Holley pump had started putting out 12 lbs , the Holley seats are good for up to 8 lbs , I put a regulator in yesterday and set it to 7.5 lbs , the car still is going to be cold blooded because it's an HP carb so it has no choke but it smoothed out quite a bit and doesn't idle rough at the lights in gear . I am no Holley expert but in the past year I have read everything out there about rebuilding and tuning these carbs and every article starts with making sure you are running the correct fuel pressure . The next suggestion I have would be to blow out the air bleeds and idle circuits with carb cleaner to remove any varnish or debris .