My '72 Dart 440 currently has a Torker 2 intake, mild cam, 770 Street Avenger carb, stock heads, TTI headers, 3000 stall Hughes convertor (which sucks!!), reverse manual valve body 727 and 4:10 gears. Timing is 18 degrees initial, 38 degrees total, no vacuum advance. Manifold vacuum is 6" at...