Converter stall speed and 1/4 times

Once locked (assuming the converter is not slipping) there will be no changes between those two converters.

From 330' on (well after the converter is locked up tight), it's clear that the runs with the BD converter flat out make less horsepower than the previous runs with the looser Goerend converter. The loss in power could be a number of things considering that you're truck is fueled by a flukey VP-44 pump.
 
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