What could cause my 97 Talon to idle roughly and to not accelerate on its own or reach over 30 mph?

Rough idling and an inability to accelerate in your 1997 Talon could be caused by several issues, such as a clogged fuel filter, a failing fuel pump, or dirty fuel injectors that restrict fuel flow. Additionally, problems with the ignition system, like worn spark plugs or ignition coils, could lead to poor engine performance. Vacuum leaks or a malfunctioning mass airflow sensor (MAF) could also disrupt the air-fuel mixture, affecting acceleration and idle quality. It's best to conduct a diagnostic check to pinpoint the exact cause.