View Full Version : Vacuum advance

05-23-2006, 01:41 PM
I have a block cast in Dec 1963. This v-8 has a delco distributor 8 M 17, then a # 1110968. What vacuun advance do I need? 6-8 HG or 8-11 HG? I can't get a # off the old vacuum unit or I don't know where to find the #.[?][?]:(