It depends on the ignition, but usually the strap is located and connected one of the bolts at the back of the head on the passenger side and to the firewall down low in the area.:ylsup: :ylsup: :ylsup:
That was the location of mine on my 69 eliminator, when I pulled the old motor out. Good luck, if things are normal you will need a sweatband, saftey glasses, and a bright light. The dirt/oil combo makes good camoflage, and is murder when dropped in your eyes.
Be careful:ylsup: :ylsup: :ylsup: