Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Distributor Vacuum Modulator Valve (DVMV)

This valve has a calibration point of 8.7 inches of vacuum. Whenever manifold or ported vacuum is less than the calibration point, the DVMV switches to full manifold vacuum. Whenever the manifold or ported vacuum is greater than the calibration point, the DVMV switches to the highest vacuum, either manifold or ported.