Hard to start when stopped

Yes, That Edelbrock is like an Aluminum tea kettle. You need a Phenolic (wood) or serious plastic spacer between the carb and the stovetop, ie intake. A air-gap intake is a little better but after the car shuts down, there is no moving air to cool the intake and it starts to heat up. MLS insulators are very good too, but a nice wood spacer will do wonders, and an electric fuel pump helps too. Mt Thermoquad even did this before a spacer was installed.