This high flow PCV valve functions better with the lower vacuum signal of a performance engine using a camshaft with more duration and overlap. 

PCV valves are not all calibrated the same, and perform differently depending upon the amount of vacuum an engine produces.  A performance camshaft will typically produce a lower vacuum signal than the stock engine/camshaft, and the stock PCV valve may not close enough at idle, which can cause an irregular and/or high idle, or otherwise not function efficiently throughout the operating range of the engine.  An improperly functioning PCV valve can also cause the premature break-down of engine oil, sludge build-up, leaking gaskets and seals, water vapor build-up, as well as allow excessive oil to enter the intake manifold.  A PCV valve that closes too easily and completely, can stay closed too long above idle, and can also interfere with the proper evacuation of blow-by gases.  This PCV valve functions better at a lower vacuum signal, but still opens once the engine vacuum changes during all-around operation.

This high flow PCV valve functions better with the lower vacuum signal of a performance engine using a camshaft with more duration and overlap. 

PCV valves are not all calibrated the same, and perform differently depending upon the amount of vacuum an engine produces.  A performance camshaft will typically produce a lower vacuum signal than the stock engine/camshaft, and the stock PCV valve may not close enough at idle, which can cause an irregular and/or high idle, or otherwise not function efficiently throughout the operating range of the engine.  An improperly functioning PCV valve can also cause the premature break-down of engine oil, sludge build-up, leaking gaskets and seals, water vapor build-up, as well as allow excessive oil to enter the intake manifold.  A PCV valve that closes too easily and completely, can stay closed too long above idle, and can also interfere with the proper evacuation of blow-by gases.  This PCV valve functions better at a lower vacuum signal, but still opens once the engine vacuum changes during all-around operation.

Comes with valve cover grommet to fit Edelbrock and Mopar cast aluminum valve covers.

For use with HiPoTek PCV valves. 

Fits Edelbrock and Mopar cast aluminum valve covers.

Not intended for use with the OEM PCV valve.

This PCV valve functions better with the lower vacuum signal of a performance engine using a camshaft with more duration and overlap. 

PCV valves are not all calibrated the same, and perform differently depending upon the amount of vacuum an engine produces.  A performance camshaft will typically produce a lower vacuum signal than the stock engine/camshaft, and the stock PCV valve may not close enough at idle, which can cause an irregular and/or high idle, or otherwise not function efficiently throughout the operating range of the engine.  An improperly functioning PCV valve can also cause the premature break-down of engine oil, sludge build-up, leaking gaskets and seals, water vapor build-up, as well as allow excessive oil to enter the intake manifold.  A PCV valve that closes too easily and completely, can stay closed too long above idle, and can also interfere with the proper evacuation of blow-by gases.  This PCV valve functions better at a lower vacuum signal, but still opens once the engine vacuum changes during all-around operation.

PCV valves are not all calibrated the same, and perform differently depending upon the amount of vacuum an engine produces.  A performance camshaft will typically produce a lower vacuum signal than the stock engine/camshaft, and the stock PCV valve may not close enough at idle, which can cause an irregular and/or high idle, or otherwise not function efficiently throughout the operating range of the engine.  An improperly functioning PCV valve can also cause the premature break-down of engine oil, sludge build-up, leaking gaskets and seals, water vapor build-up, as well as allow excessive oil to enter the intake manifold.  A PCV valve that closes too easily and completely, can stay closed too long above idle, and can also interfere with the proper evacuation of blow-by gases.  This PCV valve functions better at a lower vacuum signal, but still opens once the engine vacuum changes during all-around operation.

Comes with valve cover grommet to fit Edelbrock and Mopar cast aluminum valve covers.