Oh..sorry. Thanks for the clarification, OldMan :oops:
Zac71, those headers look like someone ran them over with a dump truck!! My 78030's just took a few small dimples to clear in my '72 Dart. In fact they are the very same set seen in the pics over on the BBD Tech Pages (I bought them from Darrin when he moved up to a bigger/better/$'er set).
I did use an AR motor plate, but it doesn't look like either mount would be in the way...