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				04-30-2010, 08:25 PM
			
			
			
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					Join Date: Dec 2004 Location: Kansas City, 
						KS Cobra Make, Engine: jbl 
						Posts: 2,291
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					Originally Posted by DAVID GAGNARD  Is  it  part  # 31-250-4???????? if  not, what  is  the  parts  number????
 I  like  the  lift  on  this  cam, but  duration  is  a  little  long  for  his  needs, doesn't  need  a  "lopy",rough   idling  cam,needs  one  with  about  15"  of  vacum  for  power  brakes,etc...the  one in  there  now  pulls  17"  of  vacum  at  850 rpm, idles  great  and  has  real  good  off-idle  acceleration....but, I'll  mention  it  to  him  and  see  what  he says, price  is  great........
 
 David
 |  that's the part number.  i have a solid roller cam a little wilder then that and it pulls pretty good vacuum with a dual plane intake.  with a single plane it pulled a little less then 8" at 1200rpm, with the dual plane it would be almost double. |