What does this mean? Radiator question

Yeah it really doesn't sound like you need much, I would bet the shroud would be enough to take care of it. Realistically you're only talking about lowering your operating temps by about 10*.

I checked my stash, I do have 3 shrouds but 2 of them are for 26" radiators. I still have a 22" radiator in my EL5GT so I need to hold onto the one 22" shroud.

It does have the "325" number on it, if that helps you locate one.