Check for the most obvious things first. In this case as previously mentioned check the fuel filter to see if the engine is starving for fuel; mid sixties Imperials have a tendency to rust in the tank thus clogging the lines. This is very easy as all you have to do is loosen the screw on the input side of your filter and observe the appearance of the fuel that falls out. I would even swap it since it costs about $3, then drive the car around the block. If it still performs the same, remove the distributor cap and see if your points are either burned or too far open. If they are too far open re gap them, if they are burned replace them again about $3. If both of these troubleshooting steps is of no avail then look for obvious vacuum leaks, i.e. vacuum advance etc. Oh yes one easy way to see if the timing chain might have slipped is either borrow or if you have one put a timing light on it. Good Luck, Tony Bianchini 1966 LeBaron -----Original Message----- From: mailing-list-owner@xxxxxxxxxxxxxxxx [mailto:mailing-list-owner@xxxxxxxxxxxxxxxx] On Behalf Of johan C wildhagen Sent: Saturday, July 10, 2004 1:15 PM To: mailing-list@xxxxxxxxxxxxxxxx Subject: IML: We took the LeBaron to drop off a friend at the airport and on the way back decided to "clear her voice" on the parkway. So I looked both ways and took it up around 90 mph. I stopped to fill up the tank and had a hard time starting back up. I eventually drained the battery and got a jump. The car started up eventually with a jump but now the engine drives like the parking break is on (no, its not engaged) when I accelerate up hill, vibrates and rumbles a little. The rumble and vibration is evident in idle as well so it isn't the drive shaft. Would any one suggest some theories? 65 LeBaron 413 Washington DC