strange 93 prelude vtec fuel problem

93 prelude vtec h22a 5 speed. stock digital fuel gage. Bought the car last spring and since then have had an issue with the fuel system. as soon as my fuel gage gets down to about 1/3 tank my car randomly dies out like its not getting fuel. it doesnt shut the engine off completely, it just boggs down for about 3-7 seconds and the motor wont accelerate, it stays at idle speed. if i pump the pedal while its doing this it just seems to bogg down worse and slow me down.  the lower my fuel gage goes after 1/3 the faster the fuel bars go down on the gage, and it boggs down more often. I replaced the fuel pump, fuel filter, fuel lines, gas cap, and it had a new filler neck when i bought the car. i dropped the tank and i couldnt see any rust inside. the top of the tank is a little tender but i dont think there are any holes.
Any useful comments or suggestions would be appreciated. thanks  

That's really weird because my old car did the same thing and it was the fuel filter. In my Accord it actually had two fuel filters. One at the tank and one in the engine bay. I don't know if the prelude is the same. Since you changed everything the only thing left I can think of is a blocked injector.  

if it was a blocked injector it would do it all the time, its like clockwork, as soon as it hits about 1/3 it starts doing it, it never does it above the 1/3 mark. i wonder if my fuel gauge is off