Here’s what hit. The boss along the center line was contacting. Like said, only 2 actually hit but I took my grinder and took down more than needed just to be sure. After grinding, need to really clean the shavings out.
With a 3/8” intake spacer, here’s my clearance.
If i slotted the throttle bracket, and eliminated the PCV connection under the plenum, probably could have gotten away with no spacer.