Need help with hesitation

[AllGreen70RT]

I'm having problem with hesitation during acceleration. Was running fine prior to some work I did. I'm wondering if I created the problem. Car idles fine. Its a 440 with dual point distributor and Holley 3310. I changed the jets in the primary from 72 to 68 (did remove the carb to do this). Removed the manual choke with the intention to replace it with a Holley electric choke kit. But put the manual choke back on after having problems with Summit and Holley trying to get a kit with all the parts (took 4 tries). Replaced fuel filter. Have not found any vacuum leaks. Any suggestions?
Thanks in advance

[71383bee]

Where is the hesitation happening.  Rolling from a stop, hard launch, normal acceleration? 

I have found that initial timing can play a significant role in this...but since you said you just worked on the carb you are probably right in focusing on that. 

[ntstlgl1970]

I'm with 71383bee, when does this happen? and also, is it better/worse hot or cold? Start with the simple stuff, you took the bowl off to change the jets, anytime you take the bowl off a holley, recheck the float level with the engine running, also check your accelerator pump adjustments, make sure the choke is fully open with the engine warmed up.

[Chryco Psycho]

A leaner mix , change in the idle mix screws or lower float level can cause the stumble , you may just need more accelerator pump squirt with the smaller jetting