ideas to stop the hot air

[catfishdb]

Has anyone tried anything to stop the flow of air thru the holes in the firewall at the two hood/bonnet latch levers. When moving along I get significant air flow coming from under the dash that is being pushed thru the two slots where the levers penetrate the firewall. The air movement is not the problem as the blower is less than adequate. It's the fact that it is very warm/hot air from the engine compartment.
Any ideas.

Thanks,

Arthur