I’d like to see at least 150-160 which takes forever. I’d rather not burn through my fuel just to get it up to temp. I’m just trying to be able to warm up a little quicker…. Not get it hot.
I run mine at 140 at the starting line. Race gas 112. Mine doesn’t like being hott. Nor does multiple other cars I race regularly with. We dynod a 572 earlier this year and did a pull with the water temp higher, it lost power all the way around.
If it struggles to get up to your target temp, why not run it cooler and see what it does. It may like it. Just a thought.