I had a Lirands on my Rover T16 engine +4. It added noise and a little umph.

The real game changer was the Librands manifold.
The Rover lump had a cast iron manifold. The Ford has steel pipes so I suspect there is no point in changing the manifold.

JohnV6
2022 CX Plus Four
2025 Renault Scenic Alpine etech "Yvette"