Geoff, your right, the Boss did run different jets. With the environment that most Boss engines lived in and the 3.91 gearing, I'm sure the extra fuel was welcomed. One of the series of replacing carburetors was the same D2PF-TA carb I ran on my 429 CJ/PI.
With the relative ease of ordering tags online that can be made to show whatever you want your part to be, Caveat Emptor!!
We have recently seen how easy it is to "Cook" Vins on cars, just as easy to do the same with ID #'s on parts. If you do anticipate a purchase on a ultra expensive part and are unsure about something, post it on this Forum. There are so many talented people here with years of experience and knowledge, let them keep you from getting burnt and getting into trouble with your wife! :whistling:
Geoff, you were also talking about the T/E parts on your friends Boss 302. I watched my buddy with the 429 SCJ 70 Cyclone rip all the T/E equipment off that car and throw it away. The pump, hoses, brackets, valves, etc, are worth an absolute fortune now.
My friend who restores cars and needed everything for the T/E system for a 70 Boss 429 had to go through Perkins for the parts that no one else had. I won't tell you what he spent, but you can take a wild guess and probably be closer than you think!!