'66 Valiant Running Hotter than Expected

Jim Kueneman said
About 9:1 (maybe a little less), have a FBO plate so 18 initial and 30 all in. Edelbrock 1405? Oregon Cams... basically what I use for the slants, aimed at low end torque low duration moderate lift. Dynamic compression about 180.

And this is a 360, correct? That's not a lot for a carburetor. If it's running lean that could certainly do it.