So that no one gets confused, I got a supposed to be 421 cub on CL. I rode it and it wouldn't shift under power so I decided to split it apart to upgrade the clutch and trans. Before I got it apart I ordered a billet basket,pancake bearing and lock up. All from Matt and that was when I asked him about custom domes , and that's when he told me what dome to run. Thank you and have a good day.