72 1300 spitfire - trouble starting cutting out when revving

[davswilson]

I've recently purchased my 1972 mark IV spitire and it seems to have been ok for a 100 mles or so. After driving 60 miles yesterday it cut out and i had to have it recovered. After half a day playing round and cleaning the carbs it's trying it's best to start and has done on a couple of occasions but as soon as revs are applied it dies. It seems to be struggling a lot and taking several times to actually get it started. Can anyone help?