Thanks to a Legendary Machinest, only known as THE STEVE or perhaps "Speedy Steve" to some we now have an adaptor that will allow running a 2G cam sensor on a set of 1G heads.
If you have a set of bad to the bone 1G heads you want to use on your 2G shortblock with the more accurate 2G separate cam and crank sensors this is the way to go.
Note, you will need a 2G 6G72 cam sensor, which is not included.