Cooling issue on highway

Ignition is 20 at idle 35 cruise and 22 wide open. Haven’t really tuned the car yet just driving it around normally.
Cool. As part of your tuning, start adding timing at cruise 2-3 degrees at a time in that very narrow area of the map. Then smooth it. You should be able to get up near 42-45 degrees maybe more on e85. It will run cooler and get better mileage. The smoothing is a big deal. On your 3d map you don’t want any huge spikes.