B1 S1 Trim / B2 S2 Trim #’s ???

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jfkelley

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Joined
Apr 14, 2019
Posts
65
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Location
Oklahoma City
First Name
John
Truck Year
1976
Truck Model
K10
Engine Size
350
I did a Swap into my 1977 High Sierra 4WD with an 2006 LM7 ..can anyone tell me what these numbers mean ? I know the temperature but what the other two mean ..I googled the interweb and not a clear answer ..Hoping for some insight here ..Thanks in advance
 

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