Thank youRuttly
I should catch-up on my reading more ...

so embarrassed
I find myself interested in more MPG now and power don't seem to matter so much (like it used too) !
Maybe , now that my hair is going CHROME it don't burn as HOT ?

My attempts at a Savage replacement that gets Great mpg ,
The latest one is a single but the power level has left me wanting a little more. The Meteor is only 350cc w/20.?-foot/lbs (30% less the the Savage). B&S = 72/86mm single cylinder - super heavy flywheel , it feels good till a l-o-n-g hill leaves it gasping for breath ! .
Now there is a "Super Meteor" available ... I understand it's motor has been getting 70's ish mpg (650cc twin) ?
I'm seeing a second attempt in my near future.