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Message: [QUOTE="dseitler, post: 1067401, member: 14112"] The only thing that's going to help is more fuel. I spent months on this problem dropping rail pressure. The best fix is dual pumps. If you not willing to spend this much money then the next best is a modified CP4. After that the VCV would be the less expensive. Anything over 1340pw you will drop rail no matter who's tune you run. Most will give you less pw so you won't drop rail pressure. If your planning on stopping at this point the VCV will work but it's hard to get and always on back order. I'm not sure about longevity no one has talked about that. You will be over maxing your CP4 pump. Who knows how long that will last. [/QUOTE]

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