Kickdown Adjustment

AJ/FormS has a smarta$$ way of putting it but more info wold be helpful in order to help you. That metal shim between the two manifolds is supposed to be there and should have been there before the repair. What do you mean by "cold start problems"? Is it hard to start or won't stay running? You said a "few other things" were replaced. What were they? What do you mean BANG at the stoplight? You can find the 1970 Dart service manual here. http://www.mymopar.com/index.php?pid=109 I know there are more questions here and no help but maybe the answers could help everyone here get you some help.