[30 A Ripper]

What is a "hot air pipe", where and what is it supposed to do? Mentioned in a post regarding "rough running".

Noticed no one uses a dwell meter or mentions vacuum gage. Why? Is there a vacuum port someplace?

Is it a hole or just depression that the timing pin drops into for static timing? Does the pin ID match the hole/depression closely or with some slop? Don't understand what putting a point on pin helps?

I bought the Les andrews books but haven't digested much yet. Kind of going with failing memory <G>.