Thread: Help Me Pick Some Heads For Christmas Present
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Old 03-04-2018, 09:59 PM   #61
Nuckingfuts
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Join Date: Apr 2017
Location: CA, USA
Posts: 117
Re: Help Me Pick Some Heads For Christmas Present
Quote:
Originally Posted by Warrens69GMC View Post
are you entering the valve relief volume as a negative?

-8.6cc
On the calculators that call for it.
I'm using Performance Trends CR calculator.
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