ok, I'll stick with the 10w-30.

As for the thermo, I thought 180 was a pretty ideal temp for water, maybe I should have gone a little hotter.
Although I should probably wait until I find out if I have bad knocking to switch up to 195.
I just put 89 octane in it since it was the first time I really had it out and I'm still taking it easy. I did do one little test at about 1400 rpm's in 4th gear to see how the torque was. I pressed it down to the floor and about 3/4 of the way down the engine started shaking like a gypsy dancer.
My compression is about 9.5:1 so it was no surprise, hopefully when I put in 93 it will be ok.
otherwise I'll be stopping at the tractor store to pick up some lead additive.