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PostPosted: Fri Oct 07, 2016 7:33 pm 
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Joined: Tue Nov 18, 2014 12:47 pm
Posts: 12
Speaking of vacuums, there is a vacuum gauge on the dash. For normal operation, what might be an expected reading? Mine seems very low, like there is a leak. Thank you...again. 84 king 33.


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PostPosted: Tue Oct 11, 2016 12:45 pm 
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Joined: Sat Sep 14, 2013 12:36 am
Posts: 160
Location: IL
My 454 used to run between 10 to 12 on a good day with a slight tail wind. When I cared about mileage, I would try to target a speed that would keep it at or above 10. Typically that was 65 to 73 mph.

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Dave

The Flying Fortress
'83 Revcon Prince 31' FWD
502 w/Howell/GM 16197427 ECM/Edelbrock MPFI,Thorley's & Magnaflows,
4L85E 4 speed, KoniFSD,
Yes it is SOLD

FMCA F298817


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