6 bolt Ignition timing???

[empie1]

I know these cars need to be timed at 8 degree, but whatmark do I try and line it up with?

my cover looks like this:
-T
-
-10 BTDC
-

I have it lined up with the mark in between the t and the btdc, is this correct?

 

[tqmx1]

That gives you 5 btdc right what the book calls for.