440 what am I missing here?

Cool Hand said

Truck was built for the sema show in 2018. We had it on the track with optima,but it only had 15miles on it then. I have been slowly working the bugs out of it since, between customer builds. Want it to be a monster when needed but still have the gearing to hit the highway at a decent rpm.

Click to expand...

Okay, that basically explains the issue. You have some mismatched parts so the question is which way do you want to go to fix the issue. If it was my truck I'd toss the FiTech and replace it with a Holley Sniper setup including full timing control. I'd pull that cam out and put something 10 or 15 degrees smaller in there. Those two changes would give you a really nice running truck with plenty of torque.

Leaving that cam in there with the FiTech and adding a high stall converter is going to point you in a direction that you might not like. Just depends if you want a nice truck that you can cruise to a show in, or if you want something kind of rowdy for stop light to stop light action.