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The EFI system that comes with the big-block SysteMAX package is one of Holley's new multi-point setups. It's a recent design that you probably haven't seen before, and it will also be available separately from the SysteMAX package. The software is great, making it very simple to program. Holley supplies a programming map with the SysteMAX that produced the numbers seen in the accompanying chart. If you're running a 502, it'll be right on.