I use a can with the 292 H

Do you have an auto or a 4 spd. With the 4spd all I have to do is push in the clutch and blip it over 2200 and get my vacuum back up to 24 inches. It is still a little rough in stop and go but it does work. A pump would be better especially on an automatic equipped car.

1968 Ranchero 390. 060 over,10.5:1, Comp 292H Cam, Performer RPM intake, Hooker headers, 4spd. 3.89 dif. ProForm 750 DP, Mallory Unilite distributor, Holley Annihilator cd ignition system, centerforce df clutch.