You can’t compare the OS .65 to the New Speed NR 61; it’s just in another league! On the other hand if you are talking about the regular NR 61 then that’s another story.
Paul,
Could you please elaborate some on the comparisons between the OS 65 and NR 60? How do
they compare to each other as far as power/rpm on the same fuel, prop, pipe, and plug?
Thanks