After the first 10 minutes at 4,000 at 1/4 throttle, you can lean both needles enough to get your lower rpm and do the rest of the break in without the glow power. The valve lash can wait until the 50 minute break in is done if set before start up. Also, lose the temperature gauge.
Yes Jim, I saw that and there is a car engine still available. I never saw a company work so hard at encouraging to buy elsewhere.