Intermittant starting line bog

Put the 3310 on and set the initial at 18*. Got a best idle vacum of 13" with the mixture screws at 1 turn out, which is what that carb liked on my street car's 440. Throttle response seemed a bit crisper but, it still smells rich at idle. Not sure if I can get to the track this weekend have to work, maybe next weekend.