Join Shelby Forums Today

Aftermarket vac. units

Discussion in '1965-1970 Shelby Mustang GT350 & GT500' started by Seaweed, Jun 13, 2011.

  1. Jun 13, 2011 #1
    Seaweed

    Seaweed Well-Known Member

    Posts:
    181
    Likes Received:
    0
    Joined:
    Apr 22, 2005
    On Ford Muscle "Timing is Everything" it says counterclockwise to decrease advance & clockwise to advance on vac .aftermarket units. On Mustangs & Fords Nov. 1999 says Turn the adjustment screw [ allen wrench ] counterclockwise for a quicker response, & clockwise for a slow rate of response . Which one should I assume is correct .----Thanks,----S.
     
    Seaweed, Jun 13, 2011
    Seaweed, Jun 13, 2011
    #1
  2. Jun 16, 2011 #2
    2+2GT

    2+2GT Well-Known Member

    Posts:
    223
    Likes Received:
    2
    Joined:
    Aug 1, 2009
    It's really a good idea to use a distributor machine, or at least a controlled vacuum, to set the precise curve specified by Ford. This adjustment is a lot more critical than just adjusting for "fast or slow". That's kinda like setting initial timing "by ear".
     
    2+2GT, Jun 16, 2011
    2+2GT, Jun 16, 2011
    #2

Share This Page