Problems Sealing Edelbrock Intake

Anybody ever have trouble sealing an Edelbrock Performer Intake? I used the Fel-Pro gaskets that came in my full gasket set minus the cork end gaskets account the directions say to use a thick bead of RTV on the ends instead of the cork gaskets as well as removing the locating pins. I did this and used RV and now I have a coolant leak from more than one area along the intake. I have ordered the Edelbrock brand intake gaskets to see if it helps the situation. The heads are stock Iron and no maching has been done to the heads or intake.