distributor vacuum advance

Yup, you can buy 'em a lot of places, I don't know what's cheapest. I tend to turn my nose up at Horrid Freight, but they are cheap, and you probably won't use it much

http://www.harborfreight.com/brake-bleeder-and-vacuum-pump-kit-69328.html#.UzTS2fj95T8

Here's one through Amazon, even cheaper

[ame="http://www.amazon.com/MHB-LB122-Hand-Vacuum-Pump/dp/B003B3WC3Q"]Amazon.com: Hand Vacuum Pump: Industrial & Scientific[/ame]