I got a few holes I want sorted to tidy up under the hood, and am wondering how to resolve my screws-in-the-vacuum-line approach of plugging things, have them look a bit neater, and also to 'fix and forget', so to speak.
I got a picture of my engine bay with the newly installed LPG system, and have marked out things I want sorted.
The cirlcles are holes I want to block permanently, and I also want to know how to block the larger holes i'll create by taking off this last pollution hose marked in red:
What suggestions can you offer me? How can I fill over the holes in the plastic air filter box? How to fix holes on the intake manifold, and what sort of plug or filter will the rocker cover require?