Offenhauser Fuel Pressure Regulator?

[72longbed]

Anybody ever used one of these on either an Edelbrock or Carter carburetor??

I'm going to plumb it inline to the chrome hard line that feeds my Carter Comp 635.

Just curious if they really work. Need to regulate a new mechanical fuel pump down to 6 lbs.

Please respond if you have used one of this model only, since I already bought it.

Thanks,
72longbed