Radiator-Temperature

As many of you`all know , I had a fair amount of trouble keeping my 505'' wedge cool to start with , after a bunch of experimentaion , I have it acceptable , (thanks to a few guys on here) recommendations and my experimenting .

It runs around 195ish to 205 on hot days , a little cooler in cooler weather .
So rrr , ur saying a 160 degree thermostat will help even more ?
Have a 180 walkershaw in it now ...
Very possibly, yes. High flow 160.