Whoever said run synthetic, absolutley not in an alcohol engine, some synthetic oils have additives that react with alcohol and create it to subdue to a gel like form, I have had it happen to me with Mobil 1 synthetic on the dyno. Ever noticed a loss in oil pressure, change out the oil filter and the pressure comes back (most people blame the filter, immediately cut it open next time and you will find jelly-like oil) Very common on a fresh or new alcohol engine (fresh cyl walls, rings). Always run a fresh engine on gas for 20-30 minutes to seat rings. Then go to methanol/alcohol.
We recommend Brad Penn to our clients, but I will definitely give the Valvoline VR1 high remarks also.
If you are having milky oil issues, either your rings aren't sealed, cylinder walls are out of round, or the engine is just plain rich.