Is this a bad idea?

What rpm are you running at that speed. I have 3.21’s in my dart and a 25.5” tall radial tire and it pulls 3 to 3100 at 100 kms (62.5 mph)
I'm running about 2800 at 65. With my tires at 25.2" I would think your RPM should be lower than mine with your larger tires???