Boggggzzzzzz!

[Mark8fish]

I hope someone can point me in the right direction. I have a 99' T/A with all the typical bolt-ons. I have 3.73 richmond gears, 2600 stall converter, and an after market 4 speed auto, don't remember the brand. When accelerating slowly 4th gear engages at about 30 mph and drops me below 1,000 rpm and the car bogs. What can I do to get this thing to shift later? Thanks, Mark
:zoom:

[performabuilt]

This would be a tuning issue has the PCM been reprogramed for the 373 gears ? But to change shift points you will need to do this in the programing of the PCM