whether or not the cam installed was a good choice, first step in my opinion is to have a timing curve, base timing and total timing considered. basic carb adjustments will get it to run but timing is first and then carb mixtures. it has happened twice to me that a person had a car that would run but not well. both cars were for what ever reason were set at zero degrees base timing. all it took was a timing light and a little time and both cars were running great. so i have to ask again what are the timing settings for the OP car? not saying this is what his problem is but not having this info makes it hard to help. advancing timing can increase vacuum but i don't want him to advance it too much so there are problems on the other end of the scale.
