Hoffman Automotive Machine Inc.                         
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 FLOW QUIK Compare Data Report                               4/3/2008          
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   No.        Date             Test Name               Manufacturer                 Model    
   ---  ----------  --------------------  -------------------------  --------------------    
     1   3/12/2008     Robbins2liter#2N1                        bus                          
     2   3/12/2008     Robbins2liter#2X1                        bus                          
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               CCFM               DEPRESSION
   Lift       No. 1      No. 2         No. 1      No. 2
--------    -------    -------       -------    -------
  0.0500       37.2       32.5         28.00      28.00  
  0.1000       67.5       53.7         28.00      28.00  
  0.1500       95.9       77.0         28.00      28.00  
  0.2000      124.3       98.4         28.00      28.00  
  0.2500      149.8      113.0         28.00      28.00  
  0.3000      172.9      125.1         28.00      28.00  
  0.3500      188.6      135.5         28.00      28.00  
  0.4000      201.1      142.4         28.00      28.00  
  0.4500      209.1      146.8         28.00      28.00  
  0.5000      215.0      150.6         28.00      28.00  
  0.5500      220.6      153.0         28.00      28.00  
  0.6000      223.0                    28.00  
  0.6500  
  0.7000  
  0.7500  
  0.8000  
  0.8500  
  0.9000  
  0.9500  
  1.0000  
  1.0500  
  1.1000  
  1.1500  
  1.2000  
--------    -------    -------       -------    -------  
Average:      158.8      111.6         28.00      28.00