I was not thinking of your motor in my comment. I got it was modified and am sure it is sweet power now
. Sorry bout that. My k17 or my 450 farmall can turn into guzzlers with a slight twist of the jet.
If you are adding alcohol then a major change in consuption and not really compatible usage. Me I am not a blend guy. Either cr for alchy or cr for gas available. I am fond of chemicals. Toulene does well for a bump and helps low cr situations. And if serious there is a nitro additive that mixes with gas...