451 overheating, even when moving

Took it out last night, 20 min drive on city streets to a show. It was about 25 (75 or 80f) and the gauge didn't go much past 180 while moving. It creeped up to around 190 when stopped, and those miserysauga lights can stay red for close to 2 minutes.

I haven't managed test the hose temps with the hood on yet, but I got a fan shroud on the way and a rigid fan as well.

Right now I would say it's sorted, but if we see any more 30c weather I'll run some more tests with the shroud etc...

Thanks everyone, fingers crossed it makes it through the summer.