Just switched fuels (Dayco to Trick ) and noticed the blown jet was/seemed a bit "fat" on the exaust and the plug readings checked my fuel bowls and all four levels were up a bit from last use ? )eek)
Still researching mostly just curious but I found this ...Interesting observation. Something you may not always think about. I remember back many years ago when we actually mixed or blended fuel at the drag strip, we measured specific gravity to confirm the percetage of nitro methane in the mix. Makes sense if there was signficant difference in the specific gravities. Have you compared the specific graviites of the fuels?