Foam for underhood use?

[scoob8000]

@starboy

I think if you used Door Edge Guards (the stuff you buy at pep boys that protects the edges of your door)
that would work fine. Plus its only like 5 bucks for 5 ft of it. We used this on whiteys 240 when making a hole bigger for the intercooler piping. Just to give it that smooth look.

But the gap that needs to be filled is about 2 foot wide by 3" or so tall.

I’d get some better pics, but the box is up at AMF getting finished right now…