Mallory sbc to 8BA 4 lobe cam issues

[Charlie ny]

I have some sbc Mallory's in the shop to convert to 8 BA. These are the
2 piece vintage cap styles. Here's the problem all have 4 lobe cams, all
are dual point using the Ford style Mallory points. These points are adjusted

with a screw driver in triangular depressions in the breaker plate. My issue
is some distributors have the points 180 degrees apart and others about

135 degrees apart. I slipped a 135 distributor into my test motor and got
very erratic spark or no spark at all. If the motor fired it was just burp.
I removed the 135 breaker plate and installed a 180 breaker plate using
the same points that were on the 135 plate. The motor fired right up no

sweat. I was extremely careful that in both scenarios .everything was
properly insulated.
Help me out here....what's the deal with the 135 plate.
Thank you,
Charlie