what is the diff between the brakets

[1badchevelle]

what is the diff between the brakets from edelbrock 6701 & 6706. both are for a body conversions. I called edelbrock but I guess they were haveing some issues.



I have a 71 chevelle with a 5.3L from a 02 silverado.

Thanks.
I have the 6701 and just want to make sure I have the right ones. also anyone have a extra set laying around they dont want or headers 65073 . I have another project(69 elco) that will need them as well.