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| | | Forums66 Topics128,085 Posts1,056,091 Members48,434 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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on the Internet for over 30 years! and not clogged down
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| | | | Joined: Feb 2007 Posts: 9 New Guy | | New Guy Joined: Feb 2007 Posts: 9 | Had my 57 truck running for a little while and don't feel that comfortable with the force required to stop fast.
I have a MasterPower dual diaphram w/ corvette style mstr cyl.with 4 wheel disks and all the proportioning stuff they recommend.
Masterpower recommends 18-20 inches of Vacuum at idle, I have 15 which is at worst case about 25% shy.
My question is has anyone used an electrical vacuum booster and does that extra 5 inches make that much difference?
Thanks,
Rich
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