Houston Rodder Member May 20, 2013 #1 I understand the parts interchange so what is the difference besides the stamped housing?
B Bob C Well-known member May 20, 2013 #2 The number denotes the manufacture 1=Zenith, 2=Holley, 3=Ford See the link to Vince's site http://www.fordgarage.com/pages/zenithnumbering.htm Bob
The number denotes the manufacture 1=Zenith, 2=Holley, 3=Ford See the link to Vince's site http://www.fordgarage.com/pages/zenithnumbering.htm Bob