wiring diagram for 1987 c-10 305/700r4 at the firewall

[sweetk30]

looking for a diagram for the 1987 c-10 305/700r4 at the big plug on the firewall .

i am trying to separate the tbi harness from the gauge/starter wires .

since i am going holley sniper and dont need the massive tbi wire pack anymore .

EDIT : here is what i got to figure out .

pink / black tracer - goes to main tbi harness .
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purple / white tracer - goes to main tbi harness .
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solid lt brown - goes to tbi main harness . and no not the alt wire i got that one .
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tan / black tracer - goes to tbi main harness
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BIG pink - it goes to TBI coil plug . so i think its key hot and crank . ?
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tan / white tracer - this is on the 2 wire oil pressure sensor top of engine behind intake .
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orange - this also is on the 2 wire oil pressure sensor top of engine behind intake .
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light purple - its going to the 700r4 trans plug .
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just to be clear i have the comon known oil pressure gauge single wire . its light tan/orangish .

all ends were labled before i pulled this from the engine . as i had unpluged the main harness at the firewall block when body was pulled .

 

[SpeedlabDan]

Just did the same with the diesel harness today. Basically I removed everything but the three plugs for the wiper/washer, and two big red wires and purple starter signal.

 

[sweetk30]

wont work for me . i am playing with tbi wires and 700r4 plug in .

thanks tho .

 

[SpeedlabDan]

Figured you were removing everything that wasn't on this block. I'm not very well versed in the TBI world to be honest

 

[sweetk30]

keeping factory dash / senders / gauges / basics to run . ditching the tbi stuff to clean it UP BIG TIME and trying to do it nice and neat so i can try and get a few bucks in the for sale section for a tbi harness labled / as complete as possible .

then tie in the MSD dist wires and the holley sniper unit .