Jobs to do while manifolds off?

[Tim-n9ok7]

I have recently purchased a Clive F Y piece and some ACT manifolds to fit to my Chimaera.

While there's space in the engine bay, I'm going to treat the chassis and look for any oily bits, but are there any other jobs to be done while the access is good?

Presumably the fuel lines would be worth changing too for the sake of a few ££.

Any other jobs to add to my list please? (new gaskets and bolts for the manifolds too obviously)

Thanks in advance

[Tim-n9ok7]

Thanks for the replies chaps

[Tim-n9ok7]

Thanks very much so far everyone. I'm adding to my 'to do' list as items get mentioned.
I managed to loosen all but 4 manifold bolts today. I'm going to remove the whole exhaust next weekend to improve access to remove the two rear lower bolts on the passenger side.