Did I miss somewhere clarifying big or small block ?

If you are running a big block, I highly recommend TranzTech in Dubuque Iowa. They installed a 518 in my 65 C body and it is by far the best thing I have ever done for that car as far as drivability. I'm running 496 ci around 500 hp and so far it is doing well ! Just can't say enough about their work.

My install was a little complicated since I first had to convert the column from cable shift to linkage etc. (One year only) they worked with all that and everything works perfectly !