eclipse

has anyone got a good plumbing pic for the factory dump valves i just picked up a 92 series 6 efini twin turbo , it has got single hks bov that is fed after one of the factory recircuit vavles and triggered by the second ones vacume so the second has no control so in basics


number one factory valve with number ones vacum attached and and expelled air going to hks bov and hks valve being controlled by number twos vacum.

number two just sitting there with no vacum control on it and the expelled air side fed into air filter.

when reved on idle valve works correctly and makes the right noise for a hks valve but under load while driving all you can hear is the hks valve letting pressure straight through ( loud woosh )
any sugestions ???

many thnks