Brought Dart to shop to fix idling issue and car runs like s**t!

Yes I agree everyone start with the basics and move from there. I think the first thing is to get the new rhoades lifters put in, check pushrod length(I have several lengths). I’ll use the one that is at zero lash at the middle of the adjustment setting in the rockers. Right now the pushrods might be a little short but nothing bad. Then when the valve train is set up right then timing can be adjusted and then setting up the carb. My ignition system is a mopar electronic distributor no vacuum advance with msd 6al box. I think it’s unfortunate that so many places talk a real good bullshit line. This place supposedly works on high dollar European cars as well as American muscle. Let’s just say I’m not impressed. I will say this. The work that I did on various parts of the car where I took my time asked questions and was careful gave me a great sense of satisfaction. It is so much better doing things and learning yourself. I just took a gamble I wanted the dart completed and was going to store it there for the winter. I said yeah just let them get it turn key ready and tuned. I guess another shop that disappoints.