Bill, different motor but same principles.

I had terribly misaligned ports on my Rover V8, and did the port matching myself. Yes, I just went in 1", matched and smoothed, although the literature on the intake side is you want some roughness (maybe do the last grinding with 120 grit) to help swirl the intake charge. Reverse is apparently true on the exaust side -- a polished finish is better. Flow bench showed a 9% gain from the work. As a result I did have to go up a step richness wise on my needles (my carbs are a bit different than yours in that needle size affects mixture in addition to jet size) and my exhaust temps are still not where I want them (1400 degress at sustained WOT).

For cars from the 80s with poor castings, manifold and head designs, I think a good gasket/port match is one the best areas of improvement you can see. Have it and have fun with it!