Surge in idle, when in PARK, after a long drive.
Howell fuel injection, 258
After a long drive(20 miles), come home and put the jeep in park and the tach stays at about 1200 RPMs. Even if you hit the gas pedal, it has a hard time to get back down to 650ish RPMs. Eventually goes but noticed the jeep has done this multiple times.
Any ideas or has someone had this before?