Just started this and getting worse the more I drive it.
Stop at the store and it drove fine, get back in and start it up, seems the idle is a bit off but ok.
As I take off it almost feels as if the trans is slipping or its cold, give it more throttle and not much happens, got upto maybe 40mph and bam it hits warp speed and is clear, I had it at about 45-50% throttle when it gets back to normal.
Doesnt do it all the time but when it does its after it was shut off and restarted.

Throttle position sensor ?
Idle control unit ?
Or possessed ?

91 (Gen1) Monty, 3.0L V6, Auto 4 Door.
Disabled Driver.