Guys, I have been reading through his thread, you guys have done a great job, it's been very informative. I do have question, I have converted a Honda GX-31 for R/C and would like to know how I can squeeze some more RPM's out of it? Would adding some pure nitro or methanol to straight pumped gas help, please remember that this engine uses an oil reservoir and is oil is not premixed like in two stroke engines
Currently it is spinning a Bolly 18X8 with magneto at 6500 to 6600 rpm's. With a Warlboro WYK 16-1-1 carb. I would like to get it up to 7500 rpm's. Would any of you folks suggest a fuel mix to get an extra kick? Any input would be appreciated

Thanks