Geez Tim, you are a pioneer, doing all that back in the early 70s, back in 72, I hadn't even discovered girls yet and I'm pushing for 61 now.
Good stuff though, I'm building my 261 now, already an sm420 convert and the 3.55 I put in a few months back.
Steve
1953 Chevrolet 3100261 cu inch, sm420, 3.55 rear, torque tube still,omaha orange, still 6 volt, RPO green glass, side carrier spare, all done
In the DITY GalleryVideo of the 261 running1964 GMC 1000305 Big Block V6, sm420, the next cab off restoration