paintman

I got a pinto in my Kit Car running with a weber DGAV carb. Just bought it .... runs well when warm but pops and bangs when cold!
The vacuum pipes don't appear correctly fitted as there is only one pipe coming out of the water heater vac. switch (attached to the water pipe), leaving the second outlet sucking air! If I seal it off the engine cuts out!

Can anyone tell me where all the vac. pipes should go inc. the carb and distributor please.....or some photos. Its driving me maddddddddd!!!

Cheers...Paintman