How much rpm drop in between the gears where you getting?
A loose converter will have little drop as its slipping and not coupling. Kind of like 1 rpm all the way down the track.
A tight converter will kill the spoolup but couple hard. Both are extreme scenarios and i've dealt with both. Car was faster with the loose converter.
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NEW Machine
89 Mustang GT
9.040 at 153.13 1.502 60ft Hoosiers 275/60 Jan 2012
True-Street trim
348, 88 t4 .96, pump gas
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