IMPCO VACUUM POWER VALVE VPV BOOST LPG RICHEN REGULATOR ROCK CRAWLER 8 CYLINDER

BRAND/PART NO.: IMPCO VPV ***FOR 8 CYLINDER ENGINES***

APPLICATION: MDL. J, E AND L REGULATORS

PURPOSE: GIVES EXTRA POWER BOOST DURING HIGH LOAD

When engine load is low and manifold vacuum is high, the VPV is held closed by the strong manifold vacuum signal. When the engine load is high and manifold vacuum is low, the weak manifold vacuum signal allows the VPV to open and richen the air fuel ratio. This will give you extra power when the engine is under high load.

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