jon..I also installed the same set-up you mentionned on a '58 235. Couple of "lessons learned"...avoid Rochesters if possible...Langdon's Stovebolt sells properly sized Carters for that set up...I started out with the Rochesters and suffered with them for a couple of years (leaking/loading up/basically untuneable)I switched to Carters and all my problems were solved. (Carters are not expensive!).
The manifold heater(water) is a nice addition and easy to install.
Good luck.
