360 is still running hot

Pictures, would help immensely, so would the specs,on the new 360. Did you buy,the matching temperature sending unit,for the actual gauge ? My advice,pick up a cheap sealed capillary temp gauge,for actual verification.(Actron /Sun,20 new/ older gauge.). I would,start there.

Sorry, pics of what? Yes the sending unit came with the gauge set. So its matched up to there gauges.

I do have a cheap one here at home but I have no place to install it since its a 3/8" nut on it. Unless I go directly into the block itself.

As for the engine, 360, xe268 cam, air gap, holley 670 carb, tti's. Initial timing is about 15* and total is about 38*. Let me know if you want more specs.