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Post by john newman on Jan 25, 2005 9:26:58 GMT -5
i know someone who has a set of Iron Protopline 256 Raised Runners, standard exaust, what kind of #'s can you get out of them, i have a pair of them now on my 420"sbc, making it a 440"sbc for this year, looking to get a little more ,than 340 int. - 250 ext. @.800lift. if i can get them could you do them up. and do you have the time.Thanks again Mike.
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Post by Mike Stark on Jan 25, 2005 10:44:01 GMT -5
I doubt if they are gonna get much better. After a while the valve angle and size becomes the restriction. 23's don't go much over 340 without a fight. I would run them as is. It would take way too much work to pick up another 5 to 10 cfm.
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Post by john newman on Jan 25, 2005 21:52:56 GMT -5
thats what i thought, but maybe its time to look for a better 23* head. thanks Mike.
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