Thanks Steve. A couple years ago I had your excellent write-up saved on my hard-drive, but that computer crashed. When I found the article again on-line the links were bad, making it difficult to follow. I really appreciate the 'revived' copy! It's by far the best reference on SOHC mods.
I spent some time searching for Dom's desired cam. The best I could find is 3 listings on the Italy eBay for 'new old stock' Fiat P/N 4331512. Roughly $300 USD (give or take) shipped to the US.
Of the current sources (at least the ones I found) for 'new' aftermarket cams the choices seem to be:
1) US source regrinds with small base circles (but good selection of profiles matching Dom's criteria), and affordable (although I don't really consider a reground cam to be "new").
2) US source new billets with radically more aggressive profiles, also very affordable.
3) Euro source new billets with profiles that appear somewhat close (although they seem to have a different way of describing them*, so its hard to know exactly what they are), around $400+ shipped to the US.
*The specs for cams can be somewhat elusive. As I understand standards are in place for the methods used to describe a cam's specs, which should allow for consistency and the ability to compare / contrast them fairly. However many sources don't seem to follow those standards, nor do they state exactly what criteria they use in describing their products. Furthermore many of the listed descriptions only provide partial (limited) information, making them even less useful. In past experiences with similar issues, attempts to contact the sources and get further data tend to be very time consuming, frustrating, and ultimately unsuccessful.
A couple years ago, when I was more active with X's, there seemed to be a lot more out there. Has the market changed?
[Dom, 'PM' me if you want links to what I found.]
