So much to check, so much to talk about....so hard to say. That said I'd start with fuel. Check the fuel filter and the float level on the carb. Hopefully you have a good Edelbrock. I've never had one. Have several Carter AFB's and AVS carbs which are the ones the Edelbrock is based on and they are easy to work on and improve when needed. Edelbrocks not so much.
One easy check is to run it till it starts missing, stop and check plugs for lean fuel conditions. The carb and filter may be good but you could have crud in the fuel tank that's limiting supply.
Good luck, Ron
