Thanks guys for the rapid, informative responses. I know this topic has been discussed many times, but I wanted to get a little clearer picture of the differences so that I could convey this info to my retired mechanic friend.
And, by the way, I already have my replacement 360 Injun on a stand getting ready to do the swap! Based on info I learned here on the site!
FABO rocks because of members like you (you know who you are)!