What thread is the fuel rail where the Schrader valve connects?

[scorp508]

I'd like to move my Scrader valve a bit by turning it up 90* to retain the ability to relieve pressure and take a mechanical reading, as well as have a second port for a permanent electric fuel pressure sensor. The stock location is pretty tight against the IAC motor. Anyone know the thread pitch off-hand at the end of the fuel rail? I've seen -4AN and -6AN mentioned. Thank you.