Engine sputtering at about 65

The sock in the tank is getting covered with trash debris from the suction of the fuel pump after driving it for awhile... then you smash on the gas and it starts sputtering.... for lack of fuel because of blockage. Shut the car off the debris falls from the sock until you start driving it again... then the vicious cycle starts all over again.

That's the weird thing, I've been babying this thing, I haven't been smashing on it, at all, even on lower speeds, when I asked for a little more at 65 it was very gradual and basically that did nothing at all, when I used a little more pressure, that's when it'd start sputtering. I literally had no trouble with it at slow speeds, at all. It was like 65 was some weird barrier where that was all I was going to get out of it.

By the way, I'm not doubting that the fuel tank has a bunch of debris in it and that it's sucking up crap off the bottom, it just doesn't seem to fit here, primarily because at lower speeds and acceleration I didn't have the same behavior. Either way, the fuel tank is on the list of things to do, along with new lines front to back to go with the new rubber plumbing from the fuel pump up to the carb.

Currently I'm looking for a complete wiring harness install and new dashboard wiring to boot. Fuel pump won't be far behind.