Found on Youtube.
Movies from race at Ste-Croix Quebec (Riverside Sppedway) June 1972
You can see the old track configuration with going up the hill and down to the shore of St-Laurent river.
Can you recognise somebody ?
My favorite watching spot is in tree just betwen the first hairpin and the second hairpin when they go uphill.
http://www.youtube.com/watch?v=HiHZqmM4dmw#t=228
Race from Sanair and Alma, Lac St-Jean, this one is a street race track amazing 1974
We can see Brian Andersson, Jim Allen
http://www.youtube.com/watch?v=bLC-0JvMO-E
Enjoy
Rabe_32