transmission for small block swap

a 4l60e 4l65e 4l80e need a control box if u are runnin a 350 carb setup..the E. stands for electronic..there are several companies offering control boxes..i have a compushift box on my 454/4l80e combo b&m makes one also..u can run a turbo 350 400 or 700r without a box

u can build a strong 350 400 for less than cost of a tranny box

any other expert opinions out there?