|Duration Advertised||288° Intake/298° Exhaust|
|Duration @ .050''||214° Intake/224° Exhaust|
|Lift @ Valve||.472'' Intake/.496'' Exhaust|
|Lift @ Cam||.295'' Intake/.310'' Exhaust|
|Lobe Separation Angle||112°|
|Intake Timing @ .050"|| Open 0° ATDC|
Close 34° ABDC
|Exhaust Timing @ .050"|| Open 49° BBDC|
Close 5° BTDC
|Vacuum @ 1000RPM Idle||15"|
Regarding Edelbrock 2152, is it possible that 15" vacuum may not be enough for the Olds 455 motor? I feel the brakes kind of hard when coming down from a higher rpm. I feel as though my disk brakes are not fully locking or coming to a full stop.
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