Im dissappointed you are not getting more replies. Ill tell you what I know. I had 2 440s with the Edelbrock 2x4 setup. I ran 2 500 eddy carbs. I loved it. Dual plane dual quad fits under the hood with wide powerband. There are single plane manifolds that will make more peak hp and the Perf RPM is probably a little better in power all around than your D66. However, your manifold is still a fantastic choice. Run 2 500cfm carbs. If you have a nice cam ,headers and converter run a direct linkage. If you have a mild build- experiment with a progressive linkage. You said your engine was a stroker? Run 2 500s with a direct linkage. Can you post a pic of your manifold? Even though I have a brand new Offy Id still like a D66. My Offy is a single plane and the D66 is a dual lane- The modern edelbrock oval dual carb air cleaner will fit your set up too. Dual carbs make a magnificent engine even better!