Just slapping some parts together and getting ready for the intake and carb swap soon. I kept the carb that I rebuilt for my old 383 build. It’s an AED Holley (4150) 750 DP HP-HO, and should be perfect for my stock RV 440. I’ve got a 1” 4 hole carb spacer, but not sure if it would be a little better (low end TQ) to have an open single, or dual hole spacer? I don’t think it would make much difference in my case, so not worried about.