Tylercooper93 Posted January 27, 2020 Share Posted January 27, 2020 So i bought a ls Frankenstein a pr3 b16 dohc vtec head on a b18 bottom end and been doing a bit of work on it and have been having problems with it surging rpms i know it can be a vacuum leak or the iacv but the surging only happens when you get on the gas i need some help with this Link to comment Share on other sites More sharing options...
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