I've got a 2016 F150 5.0 swapped into a 2004 mustang.
using a 2016 mustang pcm, 2.9 whipple, 132mm throttle body, return fuel system set at 60 psi, long tube header, manual trans, 1050x ID injectors.

I'm having an issue with loosing throttle control and fuel trims go rich. seems to happen around 8 minutes into driving every time. Every time I data log I notice the issue happens around 8 minutes.
On one data log I noticed it went into OL -not ready.
Ill keep digging but I figured I'd ask.

thanks

2016 5.0 whipple throttle fuel trims.hpt

523216 good.hpl

523217 lost throttle at 8.51 fuel trims.hpl