ZR1 hesitation has worsened-Help!

[91zr1]

I have a 1991 ZR1.I have had a slight hesitation from
1800-2300rpms.Now at idle the car is starting to hesitate.
I am going to run some redline injection cleaner through
the car and then take it in if that does not work.Any suggestions
on what the problem might be?
Thank's
91zr1

http://img.villagephotos.com/p/2003-5/148604/backzr1.jpg[/img]

 

[JT ZR-Won]

How are the plugs, wires, etc.?

Jay

 

[8388]

Make sure you don't have a vacumm leak.

 

[Chick]

Make sure the vac lines are secure on the map sensor. These cars are known for vac leaks which cause the condition you describe.