A:Have someone loosen the exhaust at the manifolds....See if the car runs better....If it does ..then....Check to see if you have a restriction in the exhaust. If you have a vacuum gage...install it on the intake some where. You should have a vauum reading of about 16 to 21 inches...When you ''snap'' the throttle it should drop to almost zero and come back to normal immediately!If not ...you are clogged!
