Fuel Pump?

[Elvis]

I've been enjoying my new Edelbrock heads, cam, etc in my '67 but today I noticed that it was a bit slow to start (302 engine, Edelbrock intake & carb). Also, it really struggled to put away a Camaro that wanted to play. When I got home I noticed that the glass fuel filter was only about 1/3 full. I cleaned out the filter, got the engine started and watched the filter as it ran. Everything was OK for a while and then the fuel level in the filter dropped down to almost nothing - by the way, the gas tank is almost new. The fuel level would go up a bit and then drop down again. I don't think it has ever done that before. Does that sound like a fuel pump issue? I've got the basic Ford fuel pump in it. Maybe with the extra horses it is time to upgrade. I see that Edelbrock has a Performer series pump that is made for their carb for about $100. Would this be a good fix? Thanks, E.