Thanks there was a lot of sand blasting and degreasing of all the nuts and bolts and parts and repainting them to be the same as factory. I like pretty much stock and original when I say original as much as possible if I can .
The hose from thermostat to radiator works very well with the HEI. Nice fit should post that part number I am sure someone else would want to do the same if wanting to use the HEI The HEI is a tight fit but it will work. Very good
https://www.oreillyauto.com/detail/...7/4327295/1970/buick/gs?q=radiator+hose&pos=2 Gates 20577. It's installed in my 85 Regal but it's "for" a 1970 350 SB Skylark. Used the 20597 lower hose after cutting about 1.5 inches off the pump end.