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2g magnus intake mani HOw too??

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I hope I'm not too let to reply to this post before you go replacing your alternator. My car was doing the same thing and it turned out to be bad grounds. Your stock intake mani has a ground strap comming from it to the fire wall. If you have all the stock grounds you may not be getting enough grounding points. Try a grounding kit or make your own ground kit before you replace the alternator. My voltage was reading 12.5-12.8 when the car was running and now after the ground kit it reads 13.5-14.0. The car also went 12.3 @ 110mph in the quarter mile before and now it went 11.82 @ 117mph. I'm not sure that this was due to the ground kit but the setup was the same except for the kit.
 
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