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auto head mods for boost

Posted: Mon Nov 09, 2015 4:39 am
by oaasport
Goingto go with an auto head for a boosted car simply for the stiffer springs and steel valves. Now where can i get even stiffer springs, cams and retainers for an auto head? The toda vvti cams are strictly for the manual. I'm no engineer so i dont know how much lift and duration i can go before eliminating vvti. (I want it for boost powerband) i can get hardwelds, but i dont want to pay double for them to figure it out or blow an engine. So if anybody knows who makes springs and cams for the auto head please chime in