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as many ls swappers have a basic understanding of wiring and sodering i wanted to attempt to build my own wiring harness for duals currently running a single, i have seen several people run the fuel pump relay differently switching terminals 85 and 86.
from my ls1 swap notes this is how i usually wire up a relay for fuel and iirc this is how i ran my current single fuel pump
terminal 85 connect to pcm red 9
terminal 30 connect to fuel pump input
terminal 86 connect to ground
terminal 87 connect to switched 12v power supply with fuse
for the dual would this be correct ? terminal numbers are inside image . contant 12v will have 20 a fuse , plan on running 12 or 10 gaueg wiring and good relays. battery mounted out back