I was in Princess Auto (like HF) today and they had mechanical vacuum gauges on sale for C$15.99. Guess what my next project will be! But something has to go - probably the clock, because ashtray area already has fuel pressure and A/F ratio!

Figure vacuum is probably the best indicator of engine condition/leaks.

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Graham
85 300D,72 350SL, 98 E320, Outback 2.5