lcplratliff

hey all need some input 90 gtu with rb exhaust othere than that the car is stock for the most part. Well here is my problome. I got low on fuel went and filled up with 87 octane and pre mixed 1 oz per gal and later that day i felt my car sputering ant about 6k and up. So i figured fuel filter/fuel sock was clogged up. I changed both still ran the same way. While i was testing the car out it just died and would not start back. its getting spark but no fuel. Do you think its just the pump or is there a relay that i should look for all fuses are good. THANKS