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Help with TPI after transmission swap.

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Old Oct 24, 2012 | 05:18 AM
  #1  
Aliviana's Avatar
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Help with TPI after transmission swap.

Not sure if I'm in the right board but heres the problem:

I've been helping some friends swap an old 700r4 out of a '92 z28 and replace it with a TH350. We're ordering in the new extended driveshaft and cross member but have ran into a slight problem. The old TH350s have a manual vacuum line for carburators which the 700 does not, does anyone know how to correct for this?
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Old Oct 24, 2012 | 07:04 AM
  #2  
vetteoz's Avatar
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Help with TPI after transmission swap.

Originally Posted by Aliviana
The old TH350s have a manual vacuum line for carburators which the 700 does not, does anyone know how to correct for this?
Vac modulator line
Only has to see engine vac , doesn't matter where it comes from
Just run the line up to the rear of the TPI intake and "T" it into one of the existing vac lines running off the vac ports at pass side rear of the plenum


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