how would i measure vacum coming from my carb to the booster?
i believe im getting low boost from my engine.
when im driving down the street and press the pedal down it works fine but after having my foot down for a while it gets stiff with no assist i believe this is low vacum? and i just put a new booster and M/C on it

thanks
dave

vacuum gauge on the carb end of things will tell you how much it's getting. When my booster had bad vacuum I had to keep both feet hard on the pedal to keep the T350 from wandering into the intersection at red lights.