Pontiac Repair: 96 ws6 trans am V8, pressure gauge, octane booster

Question
My gas take was staying on full but was not for a week and car while driving feels like it's running out of gas in town or the highway, gas take seems to be working right now but car is still feeling like its running out of gas. I replaced the fuel filter 3 mths ago and have been using octane booster is my gas, recent radiator flushed. Do you know what may cause this? could it be a bad fuel pump? It's not running hot.

Answer
My guess is that the pump is on it's way out. the only way to tell for sure is have someone put a pressure gauge on the engine and see what the pressure is doing when driving down the road. the pressure may be okay at idle but under a heavy load the pump can keep up with the volume needs for higher speed operation. Good luck :)