six pack carb setup with metering blocks

Are those all 500 cfm 2300'S? Are you going to mill the choke horns off the outboards. I have the old Direct Connection, side-hung mechanical carbs on my stroker motor. I think the clearance issue you're having is one of the reasons they used the side-hung bowls.

I love mechanical secondary six packs. I never liked the feeling of the vacumm outboards. It's almost like they have a mind of their own for a split second when opening and closing. Using a wideband really helped tuning me with tuning. It's such a great tool.