Edelbrock fit issues

Having a real hard time getting a Super Victor 2815 to fit on a set of Edelbrock heads. Finally clearance enough to get the valve covers on ,with doubled up gaskets....but can't get the bolts in on the #3 and #6 intake holes in the head. Trying studs on those 2 but was considering putting a slot on 1 side so I can have stud on each side. Any guidance would be appreciated.

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With it sitting in place how do the ports like up. I take it you test fitted this with the gasket in place and just placed the intake on dry. If so that was a very smart move. On my Victor340 intake my center four holes are a son of a gun. I hold a washer in place and have to use a 1 1/4 (12 point) bolt. Even then I’m only catching a few thread and next tear down I’ll be putting in new helicoils as I’ve used this set of head since 2009 or so. I will be slightly opening up the center four holes so hopefully I can at least use a long bolt but a 12 point does help. Good luck