- Joined
- Aug 14, 2014
- Messages
- 4,530
- Reaction score
- 1,575
- Location
- Madison, WI
- My Car
- 1971 Mach 1 w/408C stroker
I have never checked the fuel delivery but I could.If memory serves, you're running a TBI system? Does your system log a parameter that would show an increase in fuel delivery to maintain the AFR? I'm curious how much additional fuel is added with the reduced back pressure. I always had to rejet my carb for open headers when I took it to the drag strip.