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Jeff Jewell · 10-21-2019, 09:06 PM

In my 427 Corvette, the car is .10 to .12 quicker in bad weather with the 3 speed (Glide vs. T350). In good air, the ET difference was less than .02. While many would argue, my particular combination is more consistent with the 3 speed. This is all without optimizing the convertor for the 3 speed. Used the same converter between each trans.

10-21-2019, 09:06 PM	#13
Jeff Jewell Member Join Date: Jun 2002 Location: Bangor, PA Posts: 182 Likes: 41 Liked 171 Times in 36 Posts	Re: powerglide vs 3 speed In my 427 Corvette, the car is .10 to .12 quicker in bad weather with the 3 speed (Glide vs. T350). In good air, the ET difference was less than .02. While many would argue, my particular combination is more consistent with the 3 speed. This is all without optimizing the convertor for the 3 speed. Used the same converter between each trans.