Let me explain why I like the Accel, especially for this type of setup.
Accel has 5 transient fueling tables, XFI has 2. That's very important to get the very best in drivability. As you mentioned Sean, wot is easy. It's the part throttle stuff that's more difficult. The more tables you have ultimately the better it will drive.
And the XFI has individual fuel and spark control but it's all or nothing. It's not adjustable by load and/or rpm like Accel and others. I've had 2 Hilborns that I had a really hard time getting the blades synced. Because of that it would pop out of the throats that were opened more. We can richen those throats at idle to fix that. But on the XFI that change would carry thru the whole rpm/load range, when maybe it doesn't need to.
They are tricky but worth it imo.
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Mark
Engine builder and tuner.
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