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Old 02-07-2014, 05:55 PM   #10
Jim Hanig
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Join Date: Aug 2006
Location: Pukwana SD
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Default Re: dual valve springs

Quote:
Originally Posted by Jody Lang View Post
And you're only getting 35-40 runs out of the Nexteks?

I was told by a reputable Class engine builder that some have had problems with the doubles.
I have ran the Manley 1.5 and after a season they had only lost about 10 #
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