I am planning on buying a Holley Street Avenger 670 cfm carb. I currently have an Edelbrock Performer #2101 intake with 2 different carb mounting bolt patterns. The Intake has a problem in that one of the inside bolt holes is messed up. A bolt broke off inside it and I couldn't drill it out so I ended up having to grinde it flat. My question is... does the Avenger carb that I am planning on buying use the outside bolt pattern (bigger) or the inside bolt pattern (smaller) on the Edelbrock performer carb? I am trying to figure out if I should but another intake manifold or not.