New Temp and Fuel Gauge Problem

So I installed the IVR recommended by Classic Industries. I tried it without the suppressor plugged in and the gauges did not work at all. So I plugged the suppressor back in with the new IVR and they seemed to work. Now the only thing that has me stumped is the temp gauge seems to read hotter than the old one used to read. I was reading halfway on the gauge and the car had not even reached operating temperature yet. The needle never tracked all the way over to hot, but it did stay close to just passed halfway on the gauge. The fuel gauge seemed to work, but it never read exactly correct and I am not even sure how much gas is in the car. But at least the needle did pick up. Guess I will give it a go like this and see what happens.