stumble/hesitation

Ok, gotcha I will check the plugs too. I did pull the vacuum advance on the distributor when I set the timing and plugged the vacuum port on the carb. I just read another thread that said that the idle mixture needed to be checked in gear? Also said that his quickfuel needed like 1 and 1/4 turns out on the idle compared to his 1 turn on his holley so maybe thats part of it? I am new to tuning so it seems like every adjustment I make I just end up chasing my tail lol. Although I did hook up a vacuum gauge to the dizzy port on the carb and at idle i didnt have anything, is that normal? I assume so because that should be reading above the throttle blades, correct? I will see about doing a compression test if the adjustments dont work. hoping its not part of the valve train lol. I have a new xe274 with lifters and springs but figured that would be too big until i can afford heads.