Iíve got a 66 Convertible with a stock 289, C4 Auto and P/S. Iím looking at upgrading to a 4BBL 465CFM as the existing carb is shot and probably the wrong size - 500CFM 2BBL. I am thinking of doing the headers at the same time as I want to do a muffler change anyway, it has flow masters which in my opinion sound awful, they are too clacky and droney like and old truck rather than a nice V8 rumble.
Anyway I was thinking of getting some triple Yís but I have heard some brands/models sit way too low and scrape, has anyone installed header? What did you use and how did you find them for ground clearance and are they OK with the power steering.
Thoughts on carb sizes and a manifold are also welcome as I am unsure about the height issue.
PS: most of my driving is around town so I am after a little more mid range get-up-and-go rather then high end.