Thinking of going to E85 on the Dart

E85 ideal ratio is like 9.76 to 1,where as gasoline is 14.7...
Problem I read about is getting true 85/15 all the time,Say you get a batch 70/30 and your fuel ratio changes.
It works a lot better on Fuel Injected Vehicle because you can compensate for your blend!
Here is a cheap test tube from summit that could check your actually blend,you could use a test tube and water but I forgot the formula:
http://www.summitracing.com/parts/QFT-36-E85/
But yes do it !!! High octane and the timing you want.
Fuel injection would rule though...Just my .02 and no I have not done it but am considering it !