1966 1967 Chevelle 1967 Camaro Smog Pump 5696211-5696132 Rebuilt Corvette ?
 

EDIT >>> need more info on this, will re post at a later date.
Also Error in Title.

I have never heard of CSL but Don Dorfman of ASL used to rebuild and restore these smog pumps.

thanks, that is the company, typo error from last owner that wrote that tag many years ago

In the interest of helping identify your pump application, this is the port layout of any '67 Chevelle V8 pump.