Small Block Weiand Action+ vs. Edelbrock RPM Air Gap ET/MPH Comparo

rumblefish360 said
Canyou fit a spacer under the carb with what ever room you have under the engine cover?
I think, IMO, the RPM-AG is going to like it. I wouldn't touch the plenum, just port match the runners at the head as deep as I could go.

Just curious what spacer (square opening, divided center, four hole, super sucker) you prefer for the rpm manifold and how thick.