They need a valve job and their good to go.
The company is made up of sheisters however...so I'd only buy black friday when the price fits the name. Promax is the way to go. Promax stands behind their far superior higher flowing ready to run cyl heads.
Do ya think I should do anything to these ProMaxx heads? Going on a mild build. I think out of the box is just fine. I have tools to work ports but my 58 year old *** says leave em alone.