So how much does a 93 ssei tank hold? because if i fill my ttank full, once the gauge gets to about half full, if i go down a hill and then stop at the bottom my car will stall and i will have to re-start it. What is causing this, because of this i have to refill my gas tank everytime i get around 1/2 full and then it takes 9 gallons to be full so i know that im not low on gas? Any help would be nice, the person i got the car from said that it had been doind this since it had been new(why the hell didn't they fix it ).

Thanks

roughly an 18 gallon tank, but there'* room for another gallon or so in the neck

sounds like its a 92 tank without the baffles or a bad pickup/strainer