[QUOTE=Blknight.aus;1146994]seconded Ive found that LPG likes a bigger gap on a hotter plug.
Funny that, I use a colder plug with a smaller gap. Otherwise all my theories of LPG running over 30 years would be wrong. LPG is a slow burning fuel so creates more waste heat, that also explains why a few extra degrees advance works.
I use Bosch WR7DC plugs with 0.8mm gap, in NGK that would BP6 etc.

