Those issues should be expected with any out-of-the-box heads. Regardless of price level or brand. Indy, Edelbrock, 'Source... they all will have similar issues.

Well, art is art, isn't it? Still, on the other hand, water is water! And east is east and west is west and if you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does. Now, uh... Now you tell me what you know.