David, I have now done 600miles and my figures for oil and temp are as follows
Temp gets to 90 and stays fairly constant (within about 5degrees reading the gauge) regardless of whether travelling or still with the fan on
Oil pressure cold 70psi and hot 55psi. Have recently carried out first oil change and changed fro Fram to AC Delco (for no other reason than thats what I could get) pressures still the same (Dash gauge) Oil is Millars 20-50
75 miles, come on !!

Engine is 383 Stroker from Mr Huddart