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Originally Posted by stlwagon I found this: Frequently Asked Questions (FAQs) about KB89068 1. What is the difference between the 40amp and 20amp? can the 40amp bump a stock returnless GT fuel pump past 600hp capable? 40 amp is specifically made for a twin pump setup, the 20 amp is specifically made for a single pump setup. For a Mustang GT, the 20 amp is recommended however we would not recommend it with a stock pump exceeding 400 HP. |
i called kenne bell today and talked with the guy there,he told me guaranteed single BAP will serve you flawless up to 550 hp,with 39psi injectors, but thats max and winter time that number is lower around 500 with no isssuesyou might be able to fix it with tune, but not recomended,thats guaranteed form them,