I have recently hit the bottom of my header and waiting for a new one in the mail. I'm sure there's some sort of exhaust leak between the header and the cat because the exhaust sound fluttery but. My car is making a whining tickety sound when I drive. You can't really hear it when I'm going fast but cruising around it's annoying. I have I/E/H with 27,000 miles. Do you think it's possible I need to get my valves adjusted. Is it a possiblity that it can be my tranny. I know the clutch is slowly going and will have to be replaced within next month. How can I figure out when this needs to be done