The element in the filter is a Wix. I replaced it when I got the car. There was no "trash" in the canister from the tank either.

I had a similar set up in another car, stock tank, 3/8" sending unit and fuel line, same regulator, and same carb. Only difference was it had a Holley blue pump. It always had 6.5-7lbs going down the track. I'll flow test the Mallory this weekend.