Uhhhg, I did a th-350 to 700R4 swap in my '78 vette a couple months ago, and ended up damaging the new tranny I had put in the car over a particularly nasty bump off CA-101. This last weekend I dropped another 700R4 in and it's doing majorly funky things. I have the TV cable set the best I can (I used the gauge method rather that the stomping on the pedal trick as I have a slightly different mechanism for my carb) But this bizzach just isn't shifting right. Late hard shifts, it won't hold overdrive (if it shifts in at all) and if I'm in 3rd and stomp on it, it shifts to second and won't shift to third. It feels like it just slips all the way to red line. Does this sound like a TV prob? Thanks!

 

Sounds like you have the wrong throttle lever goemetry, the cable won't operate properly if it's not right. Could be other things too. What kind of carb do you have? Adapters are available to correct this problem.

 

I'm using an Edelbrock setup with a BTO TV cable setup (comes with the proper geometry adapter for my linkage) but its possible it could have slipped. I'll go check it out.