new 250 runs hot?

[cookeemann]

Running hot. Should temp sensor be in thermo housing?

- Brand new rebuild, 250ci
- New rad, water pump, temp gauge, hoses, thermostat
- Elec fan
- During break in run, temps got too hot for my comfort - 225* and I shut it off
- Temp sensor in head between cyl's, should I move it to thermo housing?
- Top hose hot, bottom cold
- Thermo verified opens in boiling water on stove
- Timing set with vac advance plugged, 4, 8 and 10*....all same result
- Runs rich, black tailpipe smoke

I'm stumped and really don't want to think the machine shop messed it up.

- Why is it running so hot?

Any ideas? Thanks Gurus!