Hi Guys
Looking at the old thread on this plane there's no side or down thrust built into the firewall.
Many people who have flown it say it doesn't like any down thrust but it does need the side thrust and I have accommodated for this by moving the engine over to the left and fitting a couple of washers on the left side of the mount.
Capt Crash I like your idea of using the original bolt holes to see where I'm at, I can probably use a paper template to do that.

Thanks

Don