'93 Lumina, Died in flight last night. checked fuel level and spark, crank no start. Tried shooting some "auto-start" (carb cleaner) in the throttle body: It ran smoothly till applying acceleration, where it would drop cylinders and eventually die.

I'm thinking it's the fuel pump, but unsure. Could anyone help me with this and if it is the fuel pump, how can I access it? (or do I have to drop the gas tank).