A quick search turned up nothing.
Wont LSJ plugs work for our boosted L61s?
nope, L61 spark plugs are taper seat, while LSJ plugs have a flat seat with a crush seal o-ring
LSjs are also shorter, similar to a 2.4 plug
so you want to avoid them
1989 Turbo Trans Am #82, 2007 Cobalt SS G85