RE: K&B .65 Sportster (yup, more from me)
Ok.. survey says: 10,500rpm on a 13x5 MAS. It took me 3 tries to get it to stay running long enough to get a good reading. It keeps quitting at WOT. No air bubbles in fuel line to carb when engine is at speed - just enough fuel to keep the clunk submersed. It is acting like fuel is just flat out cut off and it just quits. It will start right back up though, mostly in reverse. The "peak" area on the high speed needle seems a lot wider than previous runs. With the needle set 200-300rpm rich of peak, the transition is rough. Idle mix has to be full lean. It seems to idle pretty rough at 2500 so the idle speed is about 3200rpm. This is still running on the new glow plug I swapped yesterday, Sig 10% nitro 20% oil. This fuel runs great in the TT .46Pro which tached a 10x6 at 14,980rpm. Not too much relevance there, except its the same fuel that runs fine in one and not-so-fine in the other..... ideas?