I hope you did not take my responce as cold, I was merley trying to tell you that the swap is useless, and that if you were going to turbo your 420a then this turbo section would be your best info source. If you read the topics in this section it will tell you what you want to know. We are all willing to teach you what ever we can. As you have/will see this is a great community here. Any questions you have are welcome, we just want you to search first sometimes. None the less though, ask away and we will answer.