<span class="Apple-style-span" style="font-family: Verdana, Arial, Helvetica, sans-serif; background-color: rgb(238, 238, 238); "><div>Hi,</div><div>I am scatch building a 3 channel Keil Kraft Super 60</div><div>Can some one please tell me the most suitable size engine to use 2 stroke or 4 stroke?</div><div>Thanks Ian</div></span>