What knock sensor should I use for a 7747 to 7427 PCM conversion? Looking it up I find several different types, some are seperated by transmission type? Why would this matter? Which knock sensor do I need?

Also, Mark told me he remembered reading somewhere about guys who use the old ESC module and old knock sensor (from a 747 setup), while bypassing the ESC on the memcal? Any one know anything about that?? Probably more hassle than just using a newer style knock sensor with the 7427 PCM?