The 'needle', or float valve has a rubber tip, with age it hardens and doesn't seal as well .
As for debris in the fuel, if you have the fine mesh screen in the tank, or a plastic mesh screen in the bottom of the fuel tap, the only other place for it to come from, is the fuel lines .
The weather here in the suburb of 'HELL' that I live in, has finally cooled down, got a lot of work done on the '82 LS the past four days .
Looks like it might be out on the road for a 'shakedown' ride in about a week or so .
It's a duplicate of Sue's LRB .