Need Advice, Suggestions

The Engine builder was aware of the vibration issue and was attempting to trouble shoot the problem.. I was under a very tight "time frame" and had to retrive the car.. I am not blaming anyone at this time. Right now my focus is to find the problem and cure it..its a long story..someday it will be told but right now I just want to be able to drive my car..Thanks Guys for all your help.Please keep the suggestions coming!!! Peace, John
That's cool. I'mglad to hear they were willing to stand behind their work. I may have missed it but did you check the Torque converter/Flex plate bolts. Good luck with it. And BTW Beautiful Dart.