nickburns31
11-23-2025, 11:47 AM
Hey folks... It's been awhile but has anyone use the other kit to mount the fuse panel in the truck? Also has someone come across a wiring diagram on combining it with the PSI conversion kit. I see everyone is using speartech these days. I am getting a little outdated by the time I get to finish this.
csouth
11-25-2025, 06:41 AM
I'm using the highway 22 in my Cutlass, with Speartech. There is no difference in the wires that are needed for the LS between the PSI and Speartech though. On the LS side, you should have constant power, key on/run and ground. Most LS harnesses are designed to run the constant to the hot side of the starter where the batter connection is located. Ignition pink on the HWY 22 is where you want the key on/run wire from the PSI connected. The ground in the PS harness should go to the the back of the head.