Opinions on preliminary tune welcome----

Change one thing at a time . I would do the plugs first . My comment about the jets is that they "should" be around 58's but I would look at other things first.

One of the things I would do is get it warm, then with the distributor vacuum hose disconnected, advance the timing 3 to 4 degrees . If the rpm increases and it still tuns smoothly, this is a better setting for idle and your vacuum will go up . You should have more than 8 hg at idle with that wimpy cam.