Quote Originally Posted by RiskyNick View Post
Does anyone know what size the coolant holes on the manifold are?
You should drain the coolant below the level of the base of the carb mount surface on the intake. The hole are not very big using a rag to keep dirt out while you work around it should do fine. I just opened the petcock on the rad and let it drain into a clean bucket. If you want to see it look at the picture in the link I posted to my thread called "everything off"