been trying to help my blind dad with replacing a bunch of fuel system components in his vintage Ford but the brand new Holley 2300 he wanted to replace his vintage 2300 that was puking out gasoline is giving me trouble configuring it as i am just learning as i go.

- idle screws are currently set to 1 full turn out each, old carb liked 1 1/4th, for some reason the new carb had one side just 1/2 out and the other 1 full turn out of the box.

- already adjusted curb idle speed

- car runs and sounds fairly alright at idle in the garage and accelerates at idle just fine

- in gear and driving down the road it gags, stumbles, and even misfires

- vacuum ports were not messed with and are still capped off.

i don't have access to the car at the moment and they went to town but my first thoughts:

- check torque spec on the bolts for the carb to the intake just in case i have a vacuum leak, i merely got it snug but not tight so i feel i likely under torqued it

- check accelerator pump adjustment that was supposed to be set from factory

- check fuel bowl level that was supposed to be set from factory (i glanced earlier and i believe it is supposed to be 1/2 up the window but is 2/3rds up, just a little but not sure if this is enough to cause a flooding situation)

for reference it is a 500cfm 0-4412S Holley 2 barrel 2300 brand new out of the box and is attached to a 332 Ford V8 and is replacing a vintage Holley 2300 2 barrel 500 cfm.

fishing for ideas on what to check beyond what i figured out so i can go down a list when i have access to the car again.