Most people say the RamAir cars did not come w/ hood insulation. Personally, I like the look as it seems to clean things up and makes for a sharper look in my opinion. I first went with the soft/floppy hood insulation and that lasted one day. This was a POS so I ordered the moulded one and it has held up very well.

When I installed the hood pan I did not have any gaps and or holes as you mentioned. The upper hood pan seal takes care of that once installed.

Good luck and if you need any additional pics let me know, I can always take some and post them...