Hi,
I am using a standard ford efi manifold with the stadard fited idel valve.
It is connected to an MS2.

It seems to start and work fine BUT it makes a really loud buzzing noise which is amplified by the air intake. Once the idle valve duty gets below 20% the noise stops completely.

Anyone else suffred this - could it be the frequency in the MS? or a dodgy valve?

Thanks

Frank

Have you got a filter on ?

Mine does buzz, click but the exhaust does drown it out