You're welcome. AFPRs serve a purpose, but a/f ratio isn't one of them. When you're dyno testing, you may find that your power flattens out early and your a/f ratio goes lean at the same time. This indicates that you are running out of fuel on the top end and you need bigger injectors. Maybe not big enough to go to the next size up, though. You can increase fuel pressure to increase the capacity of your fuel injectors.
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