@jhamby thanks for your help I got it working. The problem was I was installing the efi to the wrong place so my efi looked like /boot/efi/EFI/. I have the full 15gb since I completely wiped chromeOS and used MrChromebox coreboot.
I wasn't able to complile the kernel without running out of disk space.

@jhamby I'm trying to put gentoo on my chromebook 2013 as well because Fedora with sway wasn't running very well. I don't understand how to setup the boot loader. I don't understand what /efi is and /boot and /boot/efi