Once in a while i sense a strong smell of gas inside the car, i have been searching inside and out but haven't found any leaks, just wondering if anyone has the same problem and where the smell is coming from? it's a 91 gsx. Also there is a high pitching noise coming from the front of the car starts when i reach 30 and it gets worst the faster i go, but if i let go the gas pedal it goes away, as soon as i touch the gas again, it comes right back. i have check tranny oil, diff oil, adjusted the clutch but nothing gets rid of the deam noise. please advise