my 1983 Turbo is running lean past 2500rpm.
The car is rocking past that Range.
I have a wide band Lambda that shows between 15 to 18:1 Afr.
At idle and in the lower rev range the car acts fine around 13 to 14,5.1 Afr.
Have look at the jets and alll were clean and free, the fuel filters in the carbs are also clean.
I measured the fuel level in carb bowls at around 33 -34mm.
Float level checked and and are at 14 - 15mm.
Fuel pressure is at 0.3 bar.
Fuel pump lazy? Fuel filter clogged?
Thanks in advance,