Old 11-18-2013, 05:47 AM
  #6  
f35rocket
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Join Date: Aug 2011
Posts: 5
Default Upping the boost on my 8-71 blown big block

Is there any "rule of thumb" as far as jetting increase, when changing pulleys from 54-61 (9% under) to 54-54 (1 to 1)? Like, maybe, one jet size per two teeth or something? Just some sort of starting point, so I don't melt pistons trying to find the right combo!
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