Roy;
Glad to hear you got things worked out! A 16x10 prop is slightly large for your motor. Normal recommendations are 15x10, 16x8. With those props(depending on type!) you should be getting 9400-9800 rpm. Your idle will let you know, smooth idle @ 2k. Try a Master Airscrew Scimitar 16x8 or the APC's! My NC ran great with the 16x8. Good prop for all around flying on my CG Ultimate. Keep us updated! And use that YS 20/20 fuel....