I used the SSBC electric vacuum pump. A bit pricey @ $250, but it did the trick. What I didn't like was that it was loud and I had to move it a couple of times because it vibrated so much, I thought the car was going shake apart (fixed by fabricating a small muffler for it). The vacuum canister from Summit didn't do squat. It stores vacuum ok, but the engine doesn't produce enough vacuum to be able to store enough to work the booster reliably.