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Old 09-30-2003, 10:16 PM
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Cam ?'s Mopar 383

Lets try again ............

I'm feeling a bit ignorant here. I bought my 383 about a month ago. I haven't a clue what cam the motor has in it, (I've had 2 other 383's w/stock cams and this one ain't stock, far too lopey) and neither does the place I bought the car from, they never touched the motor.

Now a few questions, I want to measure the lift of this cam to hopefully get some idea what it is:

Do I measure the lift at the valve (I assume so) or lifter, in other words are the stock rocker ratios taken into account when a mfg list specs for a cam?

How much vacuum should a healthy 383 w/ a moderate cam (street hemi grind, 484 lift, 284 duration for instance) make at idle (900 rpm approx)?

And lastly how much vacuum is required for PB to work properly?

Thanks in advance,

Bob

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Last edited by sledge57; 10-02-2003 at 10:16 PM.
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Old 10-02-2003, 10:16 PM
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