Did the plugs and wires today. Got the recommended '75 350 vette wires (Bosch kit 9661). Didn't fit perfect, some a little too short, some a little too long, but I made it work. Running the wires behind the manifolds was a huge PITA but worth the effort. I had to jack up the truck to get underneath and even removed the starter. I was tempted to pull the inner fenders too.
Did the tywrap trick for looms...
Thanks guys- I think it looks great. Nice and clean.