340 coolant temperature

I would ditch those cheap flex hoses and get some better ones, make sure there is a spring inside as well. I wonder if that shroud is hurting the cooling as well, it definitely blocks air passing through it that could help it cool more. What kind of water pump are you running? Maybe upgrade to a higer flow pump, like a Flowkooler.

Strange that some cars have heating issues, mine cools great, I have a built 70 340 in my Valiant. I am running a 1966 Mopar 22" rad with a high flow efficiency 2 core installed, no shroud, a stock 4-blade steel fan, Flowkooler water pump and 190 thermostat, my car never gets above 200 and that's even while being stuck in traffic on a humid 98 degree day.....I hope you get it figured out!