can u help .t25 runs erratically

[bluebell]

i have just finished making a t25 camper from a transporter van and she looks good.the problem is when you go to pull away or put your foot down when running slow it is as if it is running out of fuel,so then you have to give it some welly and she goes like a rocket.it has a pierburg carb and i have replaced gasket to manifold and flushed her through with carb cleaner.does anybody have a cheap carb for sale.

[dylan]

have you checked your inline fuel filter?

[dylan]

failing that it could be dirty fuel or like you have concluded your carb cos pierburg carbs are known for not being very speical.