"just can't let it idle for 20 minutes" Since I installed the turbo I have not tried to run on the ground for as long as twenty minutes. On an 80 + degree day, I might be in trouble. I did wrap as many of the exhaust pipes as I could. I still might have to install a box around the gasolator to keep it from becoming a percolator for the fuel.
You should get airborne as soon as you can to ensure that you can solve all the problems that only show up in the air and still have time to fly off restrictions before the gathering. Orma Southfield, MI N110LR Tweety, old enough to drink this year Flying and more flying, to the gathering or bust http://www.kr-2.aviation-mechanics.com/