Quote:
Originally Posted by Makinchips
Has anyone dynoed a closed chamber head versus an open chamber head?
I have an older friend that keeps telling me it's a 50hp gain.
Since i run a 402 in my bracket bomb and wouldn't mind throwing some more power in it I'm hoping someone on here may have some results
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Super Stock 396s make 750 HP with 215 heads, so are you utilizing 750 HP @ 131 MPH? Get those closed chamber heads to someone who knows how to work them. :
Example:
396/325 SS/GA 143 MPH @ 3350 = 754 observed HP