[Ross F-1]

I want to point out something with the Holley 12-804 (and other similar) regulators. I started smelling gas one day, just after a start. I checked under the hood and to my horror there was a stream of gas spraying right down near the DS header. (My regulator is mounted on the DS inner fender).

The regulators have a little "notch" (see arrow below) that acts as a tattle-tale when the diaphragm ruptures. I rotated the diaphragm cover 180 so now if it leaks, it sprays on the inner fender.