I got issues haha. anyways I think these two problems relate to each other in a way.

Whenever my gas tank gets to half or a lil before half, I have trouble accelerating, it feels like spark plugs are bad but they aren't. I hear my walboro whine louder than normal when this happens, and also I have trouble starting the car in the morning when this happens, it takes like 5 cranks. Now when the gas tank is full or a lil below half it goes back to normal thus ruling out bad plugs. My vacum reads around 18, 19 and my oil pressure gauge reads 25 at warm idle.

fuel injectors, spark plug wires, bad valve or cylinder are my suspects. I asked an online mechanic and they said it's a fuel regulator problem, is this true? help please this crap is annoying