Thread: info on heads
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Old 01-09-2024, 12:48 PM   #4
bert powell
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Default Re: info on heads
Quote:
Originally Posted by Dwight Southerland View Post
353049 was only used on 1973 454-215hp and 454-245hp engines in NHRA tech.
Hey Dwight, what is the difference between these two combos? Are they NHRA factored the same?
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