Gus and the Model Garage: Gus Helps Land a Big Catch July 1961

From Gus and the Model Garage comes this tale.  It is more adventure story than mechanic story, but it does feature a Ford GP.  It is titled "Gus Helps Land a Big Catch" and published in July, 1961.

http://www.gus-stories.org/html/july_1961.htm