This is a temporary solution. Next time I get a chance to trace down all of the old vacuum leaks then this solution wont be needed anymore. This takes about 5 minutes to install and is a lot quicker than spending a day tracking down vac leaks. Its not for everyone but it definitely helped me out.

My apologies, I meant 10-20cm HG of vacuum, 7 Inches HG is perfect.

Mick

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1980 300SD, 190K miles -- Soon to be on WVO
1989 GMC Suburban 6.2L diesel on WVO and B99