I have a b18b1,Crower 403's PNP Head, Aem cam gears at I: +3,E: -2. Below 1100 RPM its running like crap. Wont hold idle and has a miss. But 2000 RPM and up it pulls hard. But it has a really fast miss at high RPM's. Can someone help me here???
This is something that would need to be diagnosed. Asking for suggestions will not exactly get you the answer you need. It could be multiple issues from what you have stated.
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