You could not have a rusty tank but rather you got a bad load of gas.

Years ago I had a 78 Nova 250 3 spd column, car started to act as if it was starving for gas.

Check the filter, it was dirty. Changed it and ran fine for a while. Same symptom appeared. Sure enough cut open the filter dirt again. Replaced filter, good to go.

Third time no hinting of filter plugging up partially it just trapped a huge load of crud and the motor stopped.

Replaced that 3rd filter and no more problems.

I would get the tank cleaned out to be safe.

Last edited by 32vld; 06/08/2016 2:28 PM.