What radiator did you put in that FFR? The single row?
Also, what rear gears and fifth gear ratio do you have? A 3.73 and a .82 fifth gear will mean you are probably turning north of 3000 RPM at 80 MPH, so your temps will run high.
Those temps are MUCH higher than mine. But, I run a 3.46 and a .64 fifth gear.
At 80, on the freeway, my engine is running around 2300 rpm, and my temps are around 70 degrees C for the water and about 85 degrees C for the
oil.