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Mod | | | Forums66 Topics128,154 Posts1,056,861 Members48,456 | | 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
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Aug 2009 Posts: 311 'Bolter | | 'Bolter Joined: Aug 2009 Posts: 311 | The tachometer I am looking at is calibrated for a "std pt ign, 2 IMP/rev, 6 volt pos or neg grd".
They also have them for 1 & 3 IMP/rev, which one should I use? | | |
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