My research into the 1957 E-code engines indicates two versions, 270 HP and 285 HP. From what i can tell the 270 HP was just a D-code engine/camshaft with a 2X4 manifold and two Holley 4000s. The 285 HP seems to have a much "wilder" cam. I've been told it is somewhere around 290 degrees duration and close to 480-490 lift. I've also been told the 285 HP version was designed by Holman and Moody and the cam was ground by Clay Smith in southern California back in the day. Here are the questions:
1. Is there a Ford part number for the 285 HP camshaft and if so are the spec's available for that camshaft?
2. Are the Holley carbs the same for both 270 and 285 versions?

Thanks for your help.

Steve