I have an adapter to use your stock 4.6 2v style plenum with the Edelbrock Victer Jr intake. I'm not sure if it is the MMR piece or not, as I bought it from another member who did not specify, but I no longer have a need for it. It is a very nicely made item though. The only reason I'm selling it is because I'm using a 4150 style hat instead of the stock plenum. If you have any questions feel free to ask here or PM me. I'm asking $65 shipped to your door. Thanks.
-Oliver
-Oliver