Speedmaster intake porting. Hopefully I can make something out of this

pittsburghracer said
If possible could you give me a measurement of the opening (width and length) of the carb flange opening into the plenum. (one side)

Driver side is easiest, take note of the picture and how the plenum wall is under the top of the passenger side flange. Same sizes measured.
1.700 wide X 3.65