Hi Steven.
I removed the oil filler cap on the valve cover and just welded the bung to the cover.
The bung was included with the regulator.
Also removed the stock evac tubes and welded them shut.
Hi Scott,
I have the same Dailey dry sump system on my LS3.
Your setup lookes as recommended, with the exeption of the lines from the valve covers to breather tank. I have a vaccuum regulator on the valve cover iso the lines.
The scavange part of the pump is pulling a lot air so your -AN 6 lines lookes a little small.
Or is it maybe due to emission you are routing the lines as in the drawing?