Ok Guy's I have a couple of questions , in my 32 Coupe project I'm planning a ZZ4 motor and auto 700R4, How great is a TPI and what whats the hype on the 4L60 trans, ids it that much better that the 700 ? Is the TPI worth the effort ?. Is it difficult to master or work on ? What are the Advantages, Reliability . Thanks in advance. Skiball