Thermostat Housing Leaking

FYI

SUMMIT RACING RESEARCHED THIS PROBLEM FOR ME. THE SALESMAN FOUND A CAPTION FROM ELDEBROCK THAT SAID ONLY 1992 AND OLDER OEM THERMOSTAT HOUSINGS WORK ON THIS MANIFOLD.
I BOUGHT AN OEM HOUSING AND THERMOSTAT AND THIS SOLVED THE PROBLEM.
STAY AWAY FROM AFTERMARKET CHROME.
COST $ 9.99 for housing and 9.99 for thermostat.
No leaks.
Thank you to everyone responding back.
Al