stumbles

360 with a 750 holley carb.
msd ignition.
at lite throttle it stumbles and I have to like leaveing a stoplight easy feather the gas.
it had a 750 demon did the same thing
and the quick fuel carb does it also
but full throttle everything is fine.
no issues
I run a holley black fuel pump electric needs no regulator
6 1/2 pounds of fuel
just need a shove in the right direction