Go through your plug wires and make sure that they are in the right spot. I rececently built a 440 for my 300 and it did the same thing. It took me 3 days to finally figure out that I had two plug wires mixed up. Fixed them and it ran great. Brian ----- Original Message ----- From: "Robert Hanekamp" <bobsmopar@xxxxxxxxxxxxxx> To: <mailing-list@xxxxxxxxxxxxxxxx> Sent: Sunday, June 02, 2002 9:33 PM Subject: IML: ruff runing > Hi All. > I am having a problem with my 68 imperial. > I have rebuilt the engine and I am having trouble getting it run right. > It is hard to start and when I get it running it runs so ruff that it shacks > the whole car. > I do have two vacuum line tubes broken off on the atc in the right side kick > panel will this give problems. > Any help would be great. > It is going to real close to Carlisle when I get it done. > I am hoping to bring it to the show this year. > Thank you. > Bob > > >