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Left front wheel bearing or CV. The reason the sound isn't noticable when you make a hard right is because you're getting REALLY bad metal to metal... shavings if you would. When metals aren't "loaded" with much force they vibrate at a very high frequency and the result is the scrapping sound. Unload the bearings and you don't get metal to metal contact (making a left unloads the front right). I'm leaning more towards the bearings but it might be the CV. CV's usually occure when you're loading them with torque and have a suspension travel during this acceleration (or engine braking).
I've had the left rear wheel bearing go on me. Are you SURE it's the front and not the rear?
Free beer and pizza... I'm in. Let me know when.
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, Jon
Owner of a Red Sled.
If it\'s EFI I can tune it. Specialize in 82-95 GM (yes Lt1\'s)
\"If you can leave black marks on a straight from the time you exit a corner till the time you brake for the next turn.......Then, you have enough horsepower\" - Mark Donohue 
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