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#1 |
Registered Member
Join Date: Jul 2000
Location: San Jose CA
Posts: 149
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![]() Has anyone taken a before and after bech flow test to find out what exactly cfm is to be gained from removing the thermactor air bump from the exahust port of these heads. Not a full on port and polish job, I realize that is going to increase cfm. But moreover, I would like to see the numbers before and after this bump is removed so I can isolate which operations provide proven enhancement and which ones are a lot of hype and opinion.
thanks |
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