NEED INPUT! Idle surge and dying with AC and Heat.....

After I did my heads and cam swap almost a year ago I have had a problem with the car dying with the air conditioning on as well as the heater. Well I never use my ac really I always have the windows down but with winter comming I will need the heat on and dont want it to keep dying on me .....

when I had the car dynoed they messed with the fuel pressure and timing thats it they didnt do a custom chip or anything.... what I'm wondering is if I get a chip burned for it will this eliminate my driveability e.g. surging dying issues at stops????

I have messed with the TB and that hasnt helped I am at a loss...