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Discussion Starter · #1 ·
i know im prob beating a dead horse,but how can i convert my holley 750 dbl pumper for a ROOTS BLOWER aplication,not blow thru,can i just change out a power valve and rejet,or are the boost ref carbs realy that different,or im i wasting my time,and should just nut up and get the boost ref carb,
 

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The boost reference carbs are very different. Be sure to match the CFM to the boosted engine - it will take a bigger carb than the same engine would use if it was naturally aspirated. The last thing you want to do is suck a load of fuel through a carb that is too small and snuff a blower.
 
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