Tool
Set Valve Lash
Valve Clearance Index
Ford Flathead V8
PC-CPT-3248-4953

This handy tool allows you to properly adjust your valve lash.
One side is for the 32-48 engines while the other is for 49-54 engines.
It attaches to the distributor shaft so as you rotate the engine you can see which valve needs to be adjusted.
A complete engine valve adjustment can be done in 2 rotations of the engine.