Hello, I have a 383 Stroker, Carburetor and MSD ignition that runs strong. I’m getting a variation in idle speed though. I’ll dial in the idle speed and then it will start to drop for some reason. Main vacuum at this point is from my PCV, I’m going to add another vacuum line to my carburetor from the manifold tomorrow to see if that helps. Could I maybe need to change the springs on the weights on the distributor? Looking for ideas. I also just finished installing my AC and that definitely makes it worse when it’s running at idle. I did add a solenoid to kick the idle up some when the AC is on.