Here is a site.
http://cjford.stormloader.com/Tech/boltcircleinfo1.htm
They were the same as the Vega which is a four bolt on a four inch. The V8 Monza may have had a different pattern.
My Vega front rotors were redrilled by Moser to a 5 bolt on a 4 1/2 inch pattern. I used a Ford bolt pattern wheel. The stock rotors cannot be redrilled to a 4 3/4 pattern due to their construction. The rotors were fine and I used a 69 Camaro non power master cylinder.
The rear was a 9 inch from a Ford LTD with a 5 bolt on a 5 inch pattern. I'd recommend a different pattern such as a 4 3/4 as the selection of wheels is greater.