G'day folks,
It's a worthwhile book for later model engines, but the No. 199 edition is far better for earlier stuff, e.g. the 'full crank' Victas.
This might be the thread you recall?
https://www.outdoorking-forum.com.au/forum/u...s-scientific-publications.html#Post81688PS: I have Nos. 103, 199 [1982 edition] and 424.