My new chevette powered manual transmission gets up to 215-220 and stays there. The stock thermostat is 195. I am going to flush the system and install a 160 thermostat this week.
There is no reason you can’t add original side panels off a real td if you are good at making things look good and fit. The kit hood sides go down and bolt below the fenders and frame. Not necessarily needed. Buy original sides, use a marker and mark the areas the fiberglass sides show, then cut out the inside glass on the sides, and install the louvered hood on top of the side panel and use fender welt to hide the sides.
My engine would overheat just sitting in the driveway running (with hood on). I believe it was a weak pusher fan that just could not handle the heat. So I got a Spal puller fan, changed to 160 degree thermostat, and added an oil cooler. The car now runs at about 165-170 sitting in the driveway. with the hood off. Due to some medical issues and the fact I had pulled the heater and had holes in the firewall, I have not driven on the street. I will try driving with and without hood to see if vents are really necessary. Besides contemplating opening up the side vents, I might add vents on the top hood.
1986 British Coach Works Type 52 (Sammy)
1952 MGTD Volvo engine (for sale)