Mr Revhead[RL] Posted May 10, 2005 Report Share Posted May 10, 2005 its been running like that for a year or so now. 4ages can handle quite a bit of boost stock. i think youl ahve probs running 15psi in a sc12.... they start to become unreliable at around 12 i think..... the small port head is superior to the big port. youd have to be pushing some serious boost and power to make a bogport head work properly! i even know of a small port thats had the ports filled to give best results.... Quote Link to comment Share on other sites More sharing options...
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