If you aren't comfortable about having to hack and grind, go with the Kansas Kustom split exhaust. Also, go to Langdon's Stovebolt and get a 2 barrel Holley-Weber carb and adapter for your stock intake. It will require a linkage change, but Tom can help you with that, too. This is a progressive 2 barrel, so you will get decent fuel economy and keep your low end torque.
