That's just the guides! Intakes are 9.00 a piece. We remove the old guides, clean the head in a glass beader, tank it, dry it and heat it.
We then install the guides with epoxy and keep the head hot for an hour, then let it cool at a specified rate.
It takes some doing. Then you have to do the valve job.
We charge 750.00 for all the guides, honed and installed, valve job, surface cut and assembly.
Any porting would be extra.