by dpuckett » Sun Oct 25, 2009 2:53 pm
It will give you anywhere from .2-.8mm advance.
It depends on where you are starting (timing deg vs plunger lift is not a linear relationship), wear on internal parts, pump set up, etc. But, I'd think you'd be safe with 1/16", and see how it runs for a tank or two. If you like it, leave it. If you want more, go farther.
I dont think you would have any reliability issues with stock or near stock fuelling.
His- 93 W250 club cab LE, auto to Getrag conversion, piston lift pump, 3.54 LSD. 400k+
Hers- 04 QC 4x4. Built auto, Triple Dog, Air Dog. Funny Round truck that aint so quiet.