So that E-brock came with a gasket for that location? The original used a rubber o-ring type seal. If you end up pulling the intake (which I suspect you will have too) Try and get your hands on the rubber seal if you can (that's even if it would work with the E-brock) Or you can just get some gasket material and make a new one and USE 3M Super weather strip adhesive liberally on the gasket. When you put the manifold back on, only snug the bolts up and then use that long water pump bolt with the tab to pull the two mating surfaces together...then torque the manifold 45 ft lbs i think.