Weird noise after 4 speed install

Thanks, I want to make sure everything is firing like it should first before I make any major adjustments. Do you have the Fitech controlling timing?

I do. I've been through lots of trial and error with the thing too.

After some other work, and loading the latest firmware, I had it up and running again. I was kind of used to the way it ran, but had a couple folks ask me if it had a vacuum leak because it sounded rough. That made me dig into it further and really try to smooth things out. The difference is pretty substantial.