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Re: WTB: Stock evo valve springs and retainers
When I had Gosh do my head I gave him a set of Evo9 springs/retainers. He gave them back to me with the completed head and said that they tested weaker than my 150K mile 1G springs.
He said they were in no way an upgrade over the stockers
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What the fuck should I 4G6x swap?
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Threaded Mode