In the 700r-4 tranny they had a lockup converter and they were computer controlled. I just had a carburated 350 put into my car and it gets horrible gas mileage and the engine has to rev way up to get anywhere fast. My tach isn't working since the MSD box and the ECM aren't hooked up. My car is an 85 Iroc with the origional trans in it but when I bought it I had a LT-1 with a TPI from accel on top.

 

moving to trans and drive line board

 

If the ECM isn't locking up it's probably not locking up considering the computer is gone on a computer controlled function. However, you can add a TCC lock-up switch for non-computer controlled cars. I believe it can be done the same way as the one in the tech section.

------------------
'84 Trans Am
Crate 350 - 4 bolt main, Holley 600 w/vac. secondaries now open element
T-5 - Stock with Zoom clutch and PP

 

Thanks for the tip and reference!
peace!