Using a vacuum gauge

[IDave]

[quote author=rgentry link=board=1;threadid=14621;start=msg138307#msg138307 date=1081878115]
Paul A says:

>>Vacuum gages are a great tool. My quick and dirty way to set timing:
>> --adjust to highest vacuum, back it off a degree.

Just to clarify. Do you back off a degree with the timing light or do
you back off on inch of vacuum with the gage?

[/quote]

I've seen it done both ways, myself, but the best way, really, is to adjust to the ping method.

 

[Paul_A]

I read that you time it back a degree or two--don't know why but it works. No pinging, no popping, all good.

 

[Paul_A]

Ohh, back off a degree of timing--not vacuum.