What would it take to install a cadillac 500 in my 76 blazer? I would like to use chevy 454 throttle body injection on the 500. Advance adapters said to use a 2wd cadillac version of the TH400 and cut part of the output shaft off, to mate to a 4wd tcase. Does the 454 distributor fit into the cadillac 500? What are some specific issues I would need to address? I think I could get everything else to work. I am currently running a 350 with throttle body injection. Thanks Stefan.