what length o2 sensor extension harnesses to buy now that i'm switching from s.o. to h.o. exhaust manifolds?
Good question about length.I installed the H.O engine a month ago into the Sport,and did some eyeball measuring and just lengthened my factory harness.It took all of 30 minutes (using solder and heat shrink),and works great.The cost was free.Just a thought.
about how long was the wire that was soldered in?
Just add at least 2 feet. Or make it 3 to be safe. You'll need the extra length to route it away from the header heat and other parts. If there's extra, just make a couple of loops and zip-tie it out of the way.