I should be really impressed then when I switch to a proper synthetic mix, because my motor goes like a bat out of heck now.
I am using the frequent WOT and slow down method to break in, I agree with the theory that babying the motor does not seat the rings properly.
Wait a minute!
if your engine runs good at 16/1 it will be a lot better when you lean it out some
Run better when I lean out the oil?
Or, you mean I will have to lean it (the carburetor) out some more when I go a smaller oil ratio?