The original choke is operated by a bi-metallic spring that lives in its little dugout house in the intake manifold. The only vacuum connection is to the choke pull off, which is related but independent of the main choke operation. These chokes were used on many Mopars of the era - I recently replaced one with a used on from one of the IML vendors (Murray Park), whose info I found on the IML vendor list. Contact him at mbpark@xxxxxxxxxx Dick Benjamin ----- Original Message ----- From: <Greg_Graham@xxxxxxxx> To: <mailing-list@xxxxxxxxxxxxxxxx> Sent: Monday, January 20, 2003 10:50 AM Subject: IML: Choke for a Carter AFB? > > Anyone know of a good source for a vacuum choke for Carter AFB? I'm > debating as to whether or not I want to go electric, or stick with a vacuum > choke, after the Carter/Holley swap on my '67. > > Thanks, > Greg Graham > > > >