Found my dads original 1971 duster!

Thanks guys. I’m heading out shortly to get the shroud mounted, now that I have the bolts to hold the fan to the clutch. I couldn’t get studs with nuts, but got bolts with lock washers. Hoping that will be ok
I’ll post some pics once it’s mounted. Really hoping the fan/shroud combination helps with the heat issue
I also got a new temp sensor, new rad cap and a new thermostat. Not gonna try thermostat until I see the results from other stuff. The only thermostat they had doesn’t have a hole in it or secondary valve. Should I be drilling a hole? If so, where? Thanks