Yes, I can see that they are fitted in the Ford passenger car applications, just wasn't sure if they were fitted in the engines purchased by Morgan. Assuming they are fitted, the functionality is defeated by Morgan as the vac pipe from the manifold is Tee'd ( at the swirl flap solenoid input port) to the swirl flap servo, and the solenoid output port is capped. I get a bit of a resonance at 2,500 rpm and am looking for the source, may need to pull the manifold off to see if the flaps move under vacuum.
Thanks
