I am trying to determine correct location for #1 wire on the cap in reference to the forward position.

John I can show you prestolite shafts with different clockings on the tip as referenced to the weight assembly. Both big block DP shafts.

I can also show you Cam stops with the Flat for the rotor clocked at different angles. I know SP are different, but some of these are DP with different letter stamps. Not just a different slot length, but a different flat location. So a rebuilder that put different cam stop or shaft in for some reason could get the rotor pointing in a different direction forcing a wiring move, or setting distributor gear in a different position from the manual standard. Early Prestolite SP distributors used a similar cam stop because they used the same rotor and cap as the DP.

I agree you think it would be the same, but I have seen # 1 wire in all different locations on OEM looking Hemi cars with Prestolite distributors.

I did get a good answer on B body forum.