octane booster

all octane does is help prevent knock, pre-detination. It will do absolutly nothing for a stock blaster that is in correct running order, like not running too hot, which could create detination, or not running too much ignition advance. If you are going to raise compression on the other hand....
 
all i run is 91 also, i was told by a mechanic i know, that the octane boost really doesn't make much of a difference at all if you're running 91, he said race gas makes a big difference if you've got compression that's 14 and over, but other than that just premium gas works great