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I have a choice to have my turbo 4oo redone to a 2 speed with a 148 first gear or buy a 400 with a210 first gear I have a car 3500 pound car with 598 bbc with to system nos motor 373 gear outback on radial tire 315
 

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1/4 mile or 1/8 mile?

Many of my customers have had great success launching with the 1.48 combined with the correct rear gear ratio... Which is relative to how hard they are hitting on the launch and how quick they are bringing the total power in.

g
 

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With rear gear changes you may be able to make a 2.10 trans with a 1st and 2nd gear leaver valve body work for both tracks. You really need to decide what your main focus is on.


Hutch
 
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