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farmco r/sa 07-23-2014 07:51 PM
more horsepower news tues 7/23 on competion page
 
more news tues 7/23 nhra competition news page
sonoma/ competitor request.

Nick Heath 07-24-2014 02:15 PM
Re: more horsepower news tues 7/23 on competion page
 
Can someone help me understand how the replacement head for the Mopar 440s is rated less than the factory head?

440/375 rated at 350 with factory head, 345 with replacement head
440/390 rated at 395 with factory head, 391 with replacement head

What am I missing here?

Jeff Teuton 07-24-2014 02:23 PM
Re: more horsepower news tues 7/23 on competion page
 
Easy, the new head has not gone as fast as the old head. I think it's called the letter of the law.


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