Pro comp head failure

Put that same CNC program that Pro Comp and speed disaster uses on an Edelbrock head and put it through the same scenario and watch the seat will fall out.
More than one way to Port ahead. That head is a budget head and not a quality head but when in the right hands of someone like John/ PBR.. they are great performer. It's cheap, it's not going to set the world on fire and it's not going to be the most durable either. Think we get carried away with our expectations after thinking we've come up on something.