Fuel not getting to my carb. Need some advice

So, I just did a ton of work to my 66 convertible. I replaced the fuel pump. added a new fuel filter, new rubber hose from the fuel pump to the carb and added a 600cfm edelbrock carb. NOW, when we start the car it will run for a few seconds, then stall out. We pulled the hose off of the inline filter and there was barely any fuel at all coming out of the line. SO, what else could it be? A bad fuel sending unit sock? Junk in the main fuel line? Where should I go next? Thanks guys!
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