[pacemkr86]

yes it will drop the intake manifold temps, it will cure your denation problem..
the a/f ratio will read richer.. but perferect a/f ratio with straight alcohol " no gasonline" is something like 8.1

for instance i set my a/f at 11.5 with out alcohol.. then retune it with the alcohol system with a 10.5 or 10.0 a/f... and it runs awesome...