Intake choice

The problem isn't just the static compression lost. It's the Dcr in the basement around 6.6, and the 125psi of cylinder pressure.
That makes for really sluggish air flow through those big passages, at low rpm. My teener didn't wake up 'til well past 3500. Granted the teener wasn't fresh anymore (this was in the late 70s,maybe 78ish) but it wasn't an oil-burner either.
I still have that same short-block teener, now with its freshened factory heads and teener cam. It ran gangbusters in my FormulaS as a winter motor, with 3.55s and a 2800TC in a 904. Or a clutch. And/or an A999. Still with it's original short block.It is now running about 7.2Dcr and pressure is a tic over 140psi. And it runs through a smallport C.I. intake and the same TQ. I even ran it with 3.91s and 4.30s; what a treat that was.