Mopar 340 intake gasket replacement

Thanks for all the info guys. I have a few more questions. First my heads have the hole for the exhaust cross over but my after market intake does not have a hole for it. So do I have to block it off or is the intake not having the hole enough. Also do the pins on the china rails have to be taken out if your using the corked gasket. The intake is the edelbrock 7576 aluminum.