how do i remove intake from 84 bronco with 4bbl carb

I would like this pull this from my old truck to my new truck. Because it works and I need one. I pulled about 11 bolts out of it and I'm still stuck. Do you know by any chance do I need to take the valve covers off?

There are 12 bolts holding the intake on. Sometimes the end bolts break off and seize in the intake. Extracting them can be a problem at times.