Does any body have a Mark IV 454 block

[Kamakazi]

with the fuel systems above it is more of an injector flow#.  you select your injector size according to the amount of hp your engine makes, and therefore you engine gets the fuel it needs.  now when it comes to fuel injection systems, one does not necessarily make more hp than another, it comes down to what kind of components you use, because the 02 sensor is what determines how much or how little fuel your engine recieves.  i messed up on the webpage.  it is sdsefi.com