Prototype
Well, I've thought of puting a 2 stroke/pipe set up. But I like the high torque 4 stroke. It seems that I can spin a higher pitch prop with the 4 stroke. If I can get a 2 stroke set up (swinging a 13X8 prop at 14,000 rpm). That might get me going. But right now I'm swinging a 14X12 at 9600 rpm.