Run a loop of heater hose between the two ports- - - -it will provide circulation of coolant from the head back to the water pump and prevent hot spots from developing around the cylinders. Once the stat opens the majority of the coolant flow will follow the larger radiator hoses and minimize the bypass flow.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!