[DAbraham]

I have a 65 GTO with Carter AFB - the (65) 389 engine is from a 65 automatic car and the Transmission is a Muncie 4 sp. I am putting this car back on the road after 15 years in storage..(don't ask). It is back together and running, but when timed at book (6* BTDC) with vacuum disconnected, and then the vac line is reconnected, the timing jumps about 15* and then runs higher still at increasing revs... Can't seem to find a vac port that does not have a vacuum at idle. I have the 1965 Tempest Chassis (shop) manual - original - as well as the Pontiac Restoration guide and neither shows a clear picture of where to connect the vacuum nor comments on the high advance angles. Perhpas I do not have enough parts. I believe the auto carb (I have) is 3898S and the correct standard is 3895S. Is there some kind of device that will provide the correct vacuum profile. Any and all suggestions welcomed and very much appreciated! This sounds like a wonderful community of folks sharing ideas and information.

Thanks ... Abe - Concord, NC