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Old 02-07-2022, 12:21 PM   #2
SS734
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Join Date: Apr 2016
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Default Re: Access to AMA Shipping Weights?

Quote:
Originally Posted by Billy Nees View Post
Rory, I agree with everything that you've said. They were "allowed" WITH a 10 HP penalty over the production head.
Somehow, the Mopar heads are being treated as if the aluminum head is a different combo from the OEM head with it's own HP factor. Not the +10 HP over the OEM head that NHRA originally assigned.
Its like that for all the aftermarket heads! All have been treated as a separate combo.

Billy- What happens when the "aftermarket heads" get the HP hit? Does it effect the "stock head" HP Factor too?
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