I want to keep the 700R4. How would i go about doing this. I know that part of it is electronic for the lockup maybe? How would i do this. Im going to a carbureted 350. Would i have to keep the computer for the lock up on the trans?

 

By going carb, you are going to flatline your computer. It won't be able to lock up the torque converter clutch without the input provided by the computer-controlled distributor and TBI throttle position sensor.

However, power will still be going to the transmission (as long as you don't hack up the harness in the process). If you do a search for this topic on the tranny forum, you'll find there are a few different approaches to solving this "problem".

1) Buy a kit from Summit or Jegs.

2) Hook up a manual switch per the tech article on the TGO home page.

3) Use the 4th gear switch port on the tranny valve body to ground the TCC solenoid (that's what the ECM does, provide the ground to complete the current path for the solenoid). You'll need a normally-open, single pole pressure switch to accomplish this function. It will lock as soon as the transmission goes into overdrive, and will not lock in any other gear. The brake switch will still disengage as it does now.