you start with upgrading your fuel lines and any related seals, and maybe your fuel pump. yes, you can put isopropyl in a fuel infected car...we used to have to do it in extremely cold climates to fight-of gas freeze when nothing else was available. it raises combustion temps as alcohol burns very hot. back to methanol conversion, you almost HAVE to go to stainless steel valves and do some proactive measures to control ignition and cooling in order to parlay the effect netted from methanol. you also have to deal with the fact that upper cylinder lubricant will play a major role in longevity of the engine.