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No TB or addon can eliminate the built in M6 GM bog. It was put there by Chevy on purpose to protect the drive train. This bog is locked into the tune. And that bog only has an effect with sticky tires on a prepped surface. Otherwise you are talking about throttle response. A ported TB may help response, but as for me I have had a TM TB and several others an I could not tell a difference before and after. But we can say a ported TB will not hurt and modding is fun.
But if you want a tune free power boost get a port matched TB and ported LT1 intake manifold. Add a Rotofab dry to get another 5 rwhp. THis is a safe combo and easy to install yourself. You will feel the difference and enjoy better sounds. Fun.
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