Firstly a big thanks to Admin for the new forum, this is very cool. I've been away since our T went into storage in Sept '17 and due to a very busy year in '18 we only got her back out at Easter so we've got a bit of catching up to do...
So first thing I need to ask for help with is what looks on the surface to be a mixture problem - I don't seem to be able to lean it off enough to not foul the plugs. I've searched the internet for all the info available (most of it from this site), but even armed with that knowledge I'm still stymied.
Here's the problem. It has always ran rich, ever since we bought it. I didn't really think too much of the rich exhaust smell at first as the car is so old and my experience so low, but after 100 or so miles it was starting to misfire so it was obvious something was wrong. Pulled the plugs and they were (dry) sooty as heck. Cleaned them off and all was well again. We only did another 250 miles or so before she went into storage and I really can't remember if I needed to clean them again in that time. We've done only 43 miles since she came out of storage and already I've cleaned the plugs 3 times

I've adjusted the mixture control CW until it slowed down, then CCW until it started to falter and then found the sweet(est) spot somewhere between the two, but the plugs were fouled inside of 2 miles. I can't lean it off any more without causing it to run rough so I don't think it's a mixture issue, but something is causing the plugs to foul so quickly.
Even after 2 years of ownership the prolonged storage means I still only have just over 400 miles' experience so any help you guys could offer would be most welcome.