Guys also forget every car is different.
I have been EFI since the 90's. My Valiant has hundreds of runs on it. I try'd to use most of the stuff I knew worked on that car for my new turbo car. Bottom line is I had trouble last year fighting issues that only showed up in the upper RPM making 20 psi of boost or more. I ran grounds everywhere. From heads to battery, From relays to battery, From frame to battery.
you name it I changed it. And only made very small improvements. So when Monty suggests something in a post like this I will take his advice and make the recommended changes and try again