Can anyone give me info on running a single 1 3/4 SU on a fairly warm 1310 motor. I can't seem to get my head around the search engine on this site.

Bung a red spring with an OA6 needle in there & try that as a starting point,,, then see what it goes like, change to suit once you know what that`s like, but it should go pretty good to start with those bits

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.