Pro alloy header tank cap

[Plumber1]

Installed my pro alloy header tank today and the cap is very similar to what I had on my 1976 mini, seem to remember seeing some with a lever on top, quick release? Can I change it for something better ?

[LazyRoss18]

Stant Racing Cap

http://www.demon-tweeks.co.uk/motorsport/radiator-...

[Plumber1]

What pressure range do I need

[LazyRoss18]

21-25 I think mine is