These are the pictures and numbers for the 28 inch runner

Paul,
Can you confirm 28" runner - I thought you started at (24" ?) and were
working down.
George ( down under)

I was but I let the guys do what they wanted to on the carb manifold
and walked away.
It came out at 28 inches overall including the carb and carb trumpets.
Port to trumpet lip.

Don't hold me to that if you are doing an EFI system. The 58 mm Weber carb
may be affecting the tuning.

Paul Lamar