overfueling help

[car.crash]

on part throttle my 5's fueling is in the 9's. im running a std carb with a 390 cam and t28 turbo, also i have bigger valves.
on full boost its perfect at mid 11's and half throttle also sees around 12-13 on afr but very low revs produce silly low afr readings.
i had a modified carb and that used to overfuel constantly sub 10's so i went back to a std carb and im still having issues. any ideas?

[Sparkie]

is it a very rich 'spike'? - could it be the accelerator pump jet ?... try shortening the travel of the stroke, so less fuel gets injected?

[Scoff]

also worth checking that the enrichers are working properly and not staying open for some reason.

[car.crash]

It's not a spike but a constant flow of too much fuel. People keep saying its my cam but I'm unsure.
How do I check the enrichments Chris?

[car.crash]

On my old carb I could see fuel flooding in so swapped it out for this std one. No visible signs of fuel flooding in but afr says something is wrong.

[Brigsy]

I used to have the same problem with my dd cam, nothing wrong with the carb but stupidly rich when cruising. I messed about with main jet sizes but never cured it