Something to do with fuel quality or quantity, since you didn't mention a check engine light or code.
1. Make sure your gas is good and new and from a reputable place.
2. Make sure your fuel filter (mounted on the frame rail) is good. Some older model TBIs have another filter under the hood on the throttle body (is so equipped). Check a manual for your model.
3. Make sure you have fuel pressure. The pump pickup may be clogged, or the pump is bad. Older models had mechanical fuel pumps that ran off the crankshaft. Newer models have electric pumps mounted in the tank. I put an in-line filter on an old Blazer I had, just so I didn't have to drop the tank. If you do this, make sure it is the correct pressure pump.
4. Make sure your fuel lines are unobstructed and not kinked.
5. Make sure fuel injectors are clean and fuel is getting into the cylinders.
But watch out. Too much starter fluid can burn a valve. That's fast-burning ether you are putting in there.
My thoughts rest in the last 4 mentioned. In that order. | 
