its getting plenty of fuel. we replaced the distributor, cap, rotor, plugs and wires to no avail. it idles really rough and when you tap the gas, it hesitates then drops to dangerously low rpms. if you're driving down the road and come to a stop it will stall. no idiot lights are on. i'm completely stumped on this one. any help would be greatly appreciated.

Jake

 

open up, ur collant over flow tank run the car if it starts boiling up and coming out after a few minites ur leeaking compression and need a new head gaskit, if not cheack ur intake manifold for leaks and check for vacuume leaks, grab some carb cleaner spray it on one hose at a time while its running if it surges or rpms dropp, (ull hear it) that hose is leaking

 

Could be bad gas. Add some water remover and see if that helps. I had a similar problem happen to me a few years ago, after I got new gas in it the problem went away. But that wasn't until after a complete tune up and many other new parts.

 

another possibility could be your PCV valve or an idle air control valve. r