No idea on the trans mounts.

The iridiums are kind of expensive. Most guys run Autolite 104's gapped a bit over .50 depending on setup. The rear wires are hard to reach. I'm 6' and could reach back there with a long handled needle nose, grip the old boot, and pop it off with the bar end of a ratchet by prying on the needle nose. I couldn't get a twist on em way back there.