Not sure what version of brake line routing the assembly manual or shop manual shows. There was a change of routing in the engine compartment at San Jose that took place around April 26th - 30th. This difference relates to the routing above or below the steering column
There is a discussion over on CMF and link in the 67 SJ Running Changes thread
Since your report that you have a Jan San Jose built car yours would be routed over like shown below
Here are a few pictures from a couple of different cars so that I got just about every inch of the route from an early style power disc brake San Jose
Hope this helps
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Ignore the printing on the flex brake line. Inlucded just to show routing to rear end housing
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