68 GTX, was a 440, now a hemi. Using the original Federal pump and box. I'm not using the 90 hemi fitting on the box. NAPA or Advance don't list one for a 440 any more but they do list one for a 383 satelite. Did all 68 B/RB engines use Federal PS pumps? I'm thinking the type pump would matter more than the engine size as long as it's in the big block family. The Advance part is Powercraft # 70333. Thanks!

That part number is the same as my 71 340...I believe it will work in your application