Fuel regulator

[oldford2]

I picked up a Holley reg. also. I have not installed it yet. I put a gauge in one of the outlets. I think (?) the 2 holes on either side of the inlet can be tapped to attach to a bracket. I plan to mount this before my mechanical pump. The electric pump is only used occasionally. I know the electric pump pressure will blow by the float needle valve. Any comments/advice? Thanks
John