Steve,
I was hoping yours would be finished by now !!

Whats with buying the Excelleron 90 ? To preserve your 2M plane. I wasnt aware they were like good wine and got better with age or I'd have bought Dallas's.

No head shim at this stage. 10% Nitro in an effort to keep costs down and 15% oil, I worried it might be too little oil but there's still heaps being spat out the exhaust and lots of smoke so . . .
Yeah I cut 8mm off, now down to 237mm effective header pipe length.

It "should" fly tomorrow morning at Ballina field, trying for an 8.30am takeoff or thereabouts, its great having no time limits on our flying in Ballina, Ive been airborne as early as 7.15am.