[29er]

I'm reading this thread with trepidation because my '29 coupe supposedly came with a "6:1 head". Some newbie Q's:

(1) How can I identify exactly what head I have without removing it (which I don't want to do if not necessary);

(2) Should the head bolts be re-torqued as part of regular maintenance? The re-built engine had less than 100 miles on it when I got it;

(3) Is the head nut torque for this head still 55 ft/lbs as it would be for a standard head?;

(4) What are the signs of a blown head gasket and how is it diagnosed?;

Wanting to stay a-HEAD of the game in Oregon,
Mike