Hi all, owner of an 01 gp gt here.

Recently, my car has decided that its cool to stay at 2k -2.5k rpms while
cruising around 40-45mph..
The car has 124k on the clock. Has a ZZP pcm, slip intake, 180 tstat, as far
as "mods" go. I changed the fluid and filter about 12k ago. So i dont see
that as an issue. Im just confused as to if its the torque converter? or
if the 4th gear clutch hub/shaft has taken a crap. Advise?