When taking off or just riding down the road the acceleration is very slow... i have to have the pedal to the floor almost.. anyone know why that might be?

 

Maybe timing. Maybe low fuel pressure. More input would be helpful.

 

What engine? Hows the idle? More info will help others lead you to recovery!

 

help me help you


mo' info....

 

Acceleration's not my 90's strong point neither... but once "The General's" rollin... we rollin

 

Keep in mind that horsepower wasn't a strong suit in the 80s and early 90s for any manufacturer - the 88-91 4.9L was rated at 150hp, the 5.0L at 185hp, and the 5.8 at 210hp - which I blame on emissions regulations getting ahead of the technology of the day. Acceleration will not be breath-taking with any unmodified motor.

If the motor is in good tune and isn't bucking during acceleration - suggest to look for airflow restrictions - plugged air filter, plugged cat, etc. Perhaps toward the more extreme - do a compression check to look for weak rings or worn cam lobes.