MG Car Repair: Evaporation, charcoal canister, emissions control


Question
While under my '80 MGB yesterday, the first hot day of the season, I noticed a nasty fuel leak at the pump.  Turns out the fuel system was at a very high pressure.  My car spent many years, perhaps its whole life, in Florida, which has no emissions testing, and along the way someone removed the charcoal canister and the canister that I think used to be in the trunk.  Obviously, I don't want fuel leaking every time it's warm out, but I don't know how the evaporative loss control system is supposed to work, so I'm not sure exactly what components are missing and how to rig everything up back to factory or at least in a workable fashion.  Can you provide any info on a good way to deal with this?  Thanks!

Answer
MG Car Repair: Evaporation, charcoal canister, emissions control
Emission Control Syste
I have attached a diagram that might help you to understand the emissions control system of a 1977-80 MGB built to USA specification.  I live in the UK, and I have only ever seen one of these, so I cannot claim to be an expert in this area.  

If you live in a state that doesn't require emissions control equipment, then my advice is to strip it all off and fit the twin SU carburetters from an earlier vehicle.  Just doing this would raise the power from about 70 bhp to 95 bhp.

I have another diagram that shows where everything is under the bonnet (Hood).  I can only attach one diagram per reply, so if you want to see it, please send another question.