1974 Duster 340 Engine and 727 Transmission Questions!!!

Sure and you can even run a C4 behind a 460, but I'm on a budget. If you want to do it once and build a stock hd trans, then the 727 is worry free. A 904 will require hd parts, whereas a stock 727 is stronger than a built 904. Parasitic drag?? If you need an extra 2/5 of a second in the quarter, then by all means throw your money at a 904. I guess I'm just tired of advice touting the "great" 904, which was originally a "TF6", and was never available behind a big block...for a reason. In this day and age, if you want more gear, it's time for a 518.