67 dart stroker hellcat gen3 hemi with twin turbos...

turbofreek said

my car was professionally wired but ameteur tuned.lol waiting to get it back into shop to find the issues. im just getting the itch with 55° temps and bordem setting in. wish i could find the issues myself. life stresses are on the assault so im not overly motivated...just yet. by friday that might change though.

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How frustrating! I feel your pain. I got my new build to the track for the first time last Friday. Made one slow, spinning pass, went back for a 2nd pass and all of the sudden the engine didn’t want to even idle. The CLT temp was wigging out going all over the place and the ECU thought the engine needed fuel for a cold start and then all of the sudden for 180* and then back to cold. I ended up nursing it down the track, putting it on the trailer and going home. Next morning I swapped out the temp sensor and everyone was happy. Sabotaged by a $26 sensor!
On your Holley, can you set it up for non-sequential/batch fire and bypass the cam sensor? I like a “process of elimination” for troubleshooting these things. Disable the cam sensor. Does it run better? If so, you’ve narrowed it down to that. Still runs shitty without the cam sensor? It’s likely a different issue.
On my Megasquirt I ran dedicated positive and negative to the unit directly from the battery. The unit is powered on by a relay and 12v key of course but I did not want to share main +/- with anything else in the car.
I don’t think you can overdo the grounding.
Don’t give up! Just go slow and be methodical.