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Old 01-29-2017, 11:00 AM   #2
Billy Nees
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Default Re: More NHRA horsepower factors

Quote:
Originally Posted by PJ305 View Post
I asked Pat Cvengros and was told the 78 models came with an aluminum 458520 manifold which aren't allowed on the 77 models.
Very interesting! And yet he allows an Edelbrock LD4B dual plane aluminum intake on a 273 that only had an iron single plane intake manifold.
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Last edited by Billy Nees; 01-29-2017 at 11:37 AM.
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