This motor will be going into my bonanza drag bike. The plan is to make it as quick as possible while maintaining reliability. The plan thus far(before I found out I had a gx160) was to use a stock bore and stroke Gx200 clone block, stock clone crank, ARC billet flywheel, ARC billet rod, a gas ported flat top Honda piston, 14cc head ported heavily but not so far as to kill velocity, a 1" header, a .625 stock style methanol carb, Isky Black Mamba cam, Isky lifters, chromoly pushrods, champion shaft rockers, 26lb springs, lightweight retainers, stainless stock size valves.
Figuring on setting it up with the piston .005 out of the hole, .065 milled off the head, an Autolite surface gap sparkplug, reworking the port to smooth the transion into the bowl, try to rebuild the port on the bottom side with epoxy and grinding to achive a nice short turn radius, open the seat throats up to around 86% of the valve diameter. I will also open the cross section of the port to help support more mass flow while not going to far and killing velocity.
I'm looking to achieve a volumetric efficiency of at least 90%. I feel that alcohol is a good choice because of its high latent heat of vaporization. This is the best combination I can come up with that I believe will achieve my goal of a powerful, reliable combination:thumbsup: