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Reply to "Idle Vaccuum"

The downside to not having a roller.
A 244 duration @50 on a hydraulic lifter cam
should give you about 12 lbs of vacuum.
A 304 HR with the same duration but a roller
gives 13 lbs.easy.
Kick you timing to at least 16 at idle, don't be afraid to go to as much as 20.
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