Get a bolt in lump kit and give it an install. The install can be done on the work bench. It’s a pretty fun project and will allow the head to breath a bit better.
Here is where you get a kit
https://www.12bolt.com/store/p1/Standard_HI-FLOW_Bolt_in_lump_kit.htmlAnd here are the videos for the installation.
https://www.12bolt.com/bolt-in-lump-installation-instructions.htmlYou can do a little polishing in the chambers if you want, nice three angle valve job, you can use some good street flo valves if you want.
It’s a pretty good project. I have done two of them.