“Normal” model a temp

[Slowmotoring]

I know there are many variables but, what would the typical model a temperature be when driving on flat land in mid 80 degree weather. Stock engine with the exception of the weber downdraft carburetor. Im running close to 190 coming out of the engine block. Not sure of the temp going in. I have adjusted my advance without much luck. My radiator does appear to be original and has a pretty good collection of grime inside of it. Im thinking it might be time to have it cleaned out. Or is this a normal summertime temp for these cars? I do have the hood off of this car while i work the bugs out (easier access to engine with hood off) could this be effecting the cooling abilities? The car also has engine pans which i thought i heard helps the car run cooler but im assuming the hood would need to be on for the pans to make a difference. Anyone have any ideas?