Anyone running a Edelbrock Carb?

[ABX131]

So yesterday Grandpa came over to help me tap a broken bolt in my engine. Once we got it done and everything put back together and ran the engine, he started tweaking with the Air/fuel mixture screws and idle. It seemed ok while it was warmed up but now it is a pain to start. Anyone know what the default settings are (how many turns). I need a starting point. What settings are you running? We are at 500 ft above sea level if that helps.