timing chain install question

OK, so I'm a little slow and I just came across this
posting after doing an internet search
I have a 74 Dart 318, the cam gear broke and
I replaced it...Using number cylinder
but reading here, it is No. 6 that is at TDC
when the gear set is installed..
Should I then set No. 6 to TDC and install
the gear set with the marks at 6 and 12
My Haynes book has no mention of this.
any suggestions would be appreciated..
Best

This thread will show how the timing chain is installed:

How to Assemble the Front of a Small Block