I agree with Randy B. 19x8 mejslik and K&B 1L or K&B 4520 with 5% Powermaster fuel.1.8 Moki's will run forever if you don't lean it too hard. I have two, an eight year old one on a Spitfire, and one on a 27% cap232 going on its third season. Only problem I've had with them is you get tired of fueling them up. Paul