jumpering the connector and the vehicle running better is a good sign. I haven't seen this problem personally in over 10 years. as i stated before it is part of my TBI tuneup "recipe".
i made a mistake it's a 369 not 395. check what module you have currently. 048 will pull 6* of timing by 5000 rpm. 369 will add 2* by 3600. on a stock motor you should notice an improvement going to a 369 module. if you tune the timing tables it shouldn't matter what module you use.
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