[V8] thermostat removal tips

[John Dodd]

Hi
My car takes a long time to reach operating temperature(according to the
temp gauge).Is this normal ?
I've also noticed that the temp gage goes down sometimes before the car
reaches 87 C so I decided to change the thermostat.
Could you please give me some tips on changing the thermostat ?
First of all I noticed that the top radiator hose is in the way. It's
held in the middle by a black plastic clamp. How do I remove it ?
Also do I have to remove the ISV valve ? That seems to be in the way
too.
Any other pieces that should be removed and some do's and don'ts are
much appreciated.
Thanks
John