All engines are compression analyzed before being shipped. We do not ship engines with lousy compression.The K20A3 similar to the CRV/accord/component k24a does not have a standard DOHC VTEC valvetrain as we know it from the B-collection engines - the K20A3 must essentially be called a "DOHC i-VTEC-E" engine, because it employs a VTEC-E cam setup.B