Chris, I assume Cal required some sort of certification testing. I wonder if the Auto Trans Tripower got by because the end carbs never opened during the specified testing while the progressive mechanical linkage used on the Man Trans Tripower caused the end carbs to partially open, resulting in more HC?
Would be cool to learn what the test protocol was. If WOT was not required, I'm thinking the vac secondaries never pulled open. Perhaps the test was at some steady rpm. That would explain a difference in end carb opening between the two engines.
Since the cam was same in both, I can't think of any real difference between the two engines unless it had to do with distributor timing. Don't know if that differed.
But I think the end carb opening difference would make sense.
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