I have a problem and I’m not too engine savvy so I thought you guys might be able to help. It’s a 400 Pontiac motor with and Edelbrock performer intake. The problem is with the EGR ports to the intake. There’s a big gap at the EGR port and it leave a long open slot were the intake seals to the head. I must be missing something? What gasket should I be running with the edelbrock intake. If the port was left open what would it do to the engine?