Been running the Dr Diff unit for 2+ years and it is awesome imo and a bit heavier but beefier with forged caps and stout adjusters.........of course my stock unit lasted 16+ years........... boogie drive


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....