Increase in Ethanol?

lotta ethanol talk round the dirt tracks...specially in the "crate motor" circles,they say if you gonna run it you need to change to alcohol type pumps an lines an use a e-85 prepped carb or you'll have issues,..an you gotta get a test kit an check how much alcohol is in each batch you get an correct the percentages or re-tune accordingly or there will be issues as in burnt pistons,..an care must be taking if storing any as the alcohol will assorb water,..but if attention to details are followed theres a lil better power curve to be found an will run lot cooler,...one thing i noticed at the track,..the e-85 carbs will be covered in condensation after they run....im sticking with sunoco blue 114 in mine...