Holley/Demon Carb stumble

I’m looking at the RPM data logger because it’s fairly inexpensive, is expandable, can log clutch RPM easily and I like what I’ve seen of the software.

I'll have to look into that ! (it's been off my radar lately..)
A friend of mine put a RacePak on this Stocker, and added a fuel pressure sensor at test n tune, and right away, he saw a fuel pressure issue.
I felt like a caveman, not having one... lol