I don’t use 35’s on anything that isn’t a tunnel ram or a carb that’s far too big and poorly tuned.
I’m still trying to figure out if it’s going lean on tip in or if it’s fat. I’m leaning towards it’s going rich but I’m not sold on it yet. I’m still thinking.
One issue is if you are cruising and you just lean into the throttle and it stumbles is different from cruising along and sticking your foot through the floorboards and it stumbles.
The former will never get cleaned up from pump shot. You can test this by holding the engine at cruise rpm and then just ease into the throttle and you’ll see the fuel just pee out of the squirter.
The less aggressive the pump cam and/or bigger nozzle will make it worse.
I’m talking about with the car parked and you running the throttle by hand to see that.
The other thing is main air bleed size. The main air bleed controls when the booster starts. A bigger main air bleed starts the booster sooner so it will be richer sooner. There is overlap between the T slots and the mains. Start the booster too early and they get rich.