Install an electric 12v vacuum pump and switch it on as needed.
Like when ever the key is off and the brake is applied. Or when the engine is off, but the key on and when brake booster vacuum falls below 5 to 10''Hg.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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